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26918072164048 = 2413731772791897
BaseRepresentation
bin1100001111011010110100…
…01000010001111011010000
310112022100020201202012021111
412013231122020101323100
512012011202433222143
6133125554105503104
75445523631124412
oct607553210217320
9115270221665244
1026918072164048
118638987a9064a
123028a9baa1a94
131203495278a10
14690bad6869b2
1531a302c0a99d
hex187b5a211ed0

26918072164048 has 40 divisors (see below), whose sum is σ = 56934984596168. Its totient is φ = 12253537585152.

The previous prime is 26918072164037. The next prime is 26918072164069. The reversal of 26918072164048 is 84046127081962.

It can be written as a sum of positive squares in 4 ways, for example, as 849368678544 + 26068703485504 = 921612^2 + 5105752^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26918072163983 and 26918072164001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886380765 + ... + 886411132.

Almost surely, 226918072164048 is an apocalyptic number.

It is an amenable number.

26918072164048 is an abundant number, since it is smaller than the sum of its proper divisors (30016912432120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26918072164048 is a wasteful number, since it uses less digits than its factorization.

26918072164048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772791991 (or 1772791985 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 26918072164048 in words is "twenty-six trillion, nine hundred eighteen billion, seventy-two million, one hundred sixty-four thousand, forty-eight".

Divisors: 1 2 4 8 13 16 26 52 73 104 146 208 292 584 949 1168 1898 3796 7592 15184 1772791897 3545583794 7091167588 14182335176 23046294661 28364670352 46092589322 92185178644 129413808481 184370357288 258827616962 368740714576 517655233924 1035310467848 1682379510253 2070620935696 3364759020506 6729518041012 13459036082024 26918072164048