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25678697213042 = 217215437458047
BaseRepresentation
bin1011101011010110010011…
…01000000010110001110010
310100220212012120010022211022
411311223021220002301302
511331204432441304132
6130340344115215442
75260140024635006
oct565531150026162
9110825176108738
1025678697213042
118200302153035
122a688538a7582
13114364c267943
1464abd99b8706
152e7e66352e12
hex175ac9a02c72

25678697213042 has 8 divisors (see below), whose sum is σ = 38518073358336. Its totient is φ = 12839339426932.

The previous prime is 25678697213023. The next prime is 25678697213051. The reversal of 25678697213042 is 24031279687652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285938 + ... + 7172109.

It is an arithmetic number, because the mean of its divisors is an integer number (4814759169792).

It is a 2-persistent number, because it is pandigital, and so is 2⋅25678697213042 = 51357394426084, but 3⋅25678697213042 = 77036091639126 is not.

Almost surely, 225678697213042 is an apocalyptic number.

25678697213042 is a deficient number, since it is larger than the sum of its proper divisors (12839376145294).

25678697213042 is a wasteful number, since it uses less digits than its factorization.

25678697213042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179592.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 25678697213042 in words is "twenty-five trillion, six hundred seventy-eight billion, six hundred ninety-seven million, two hundred thirteen thousand, forty-two".

Divisors: 1 2 1721543 3443086 7458047 14916094 12839348606521 25678697213042