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64537082168930 = 257318815475851
BaseRepresentation
bin11101010110010001101011…
…10110111000011001100010
322110111200111012221021212222
432223020311312320121202
531424333421013401210
6345131532023151042
716410436026155000
oct1653106566703142
9273450435837788
1064537082168930
1119622028451578
1272a38762a5482
132a01a89202387
1411d187bb2da70
1576db56e15655
hex3ab235db8662

64537082168930 has 32 divisors (see below), whose sum is σ = 135471426134400. Its totient is φ = 22126999599600.

The previous prime is 64537082168837. The next prime is 64537082168963. The reversal of 64537082168930 is 3986128073546.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9407734496 + ... + 9407741355.

It is an arithmetic number, because the mean of its divisors is an integer number (4233482066700).

It is a 1-persistent number, because it is pandigital, but 2⋅64537082168930 = 129074164337860 is not.

Almost surely, 264537082168930 is an apocalyptic number.

64537082168930 is an abundant number, since it is smaller than the sum of its proper divisors (70934343965470).

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

64537082168930 is a wasteful number, since it uses less digits than its factorization.

64537082168930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18815475879 (or 18815475865 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 62.

The spelling of 64537082168930 in words is "sixty-four trillion, five hundred thirty-seven billion, eighty-two million, one hundred sixty-eight thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 3430 18815475851 37630951702 94077379255 131708330957 188154758510 263416661914 658541654785 921958316699 1317083309570 1843916633398 4609791583495 6453708216893 9219583166990 12907416433786 32268541084465 64537082168930