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12637568812513 = 83307495960473
BaseRepresentation
bin1011011111100110100111…
…0011001100010111100001
31122202010202220021120112011
42313321221303030113201
53124023220104000023
642513341410232521
72443014510342121
oct267715163142741
948663686246464
1012637568812513
114032621152287
1215012b4285741
13708943814368
143199395b2c81
1516daeb0dd50d
hexb7e69ccc5e1

12637568812513 has 8 divisors (see below), whose sum is σ = 12831489383328. Its totient is φ = 12444640163424.

The previous prime is 12637568812507. The next prime is 12637568812541. The reversal of 12637568812513 is 31521886573621.

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

It is a cyclic number.

It is not a de Polignac number, because 12637568812513 - 229 = 12637031941601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12637568812213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247954756 + ... + 248005717.

It is an arithmetic number, because the mean of its divisors is an integer number (1603936172916).

Almost surely, 212637568812513 is an apocalyptic number.

It is an amenable number.

12637568812513 is a deficient number, since it is larger than the sum of its proper divisors (193920570815).

12637568812513 is an equidigital number, since it uses as much as digits as its factorization.

12637568812513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495960863.

The product of its digits is 14515200, while the sum is 58.

The spelling of 12637568812513 in words is "twelve trillion, six hundred thirty-seven billion, five hundred sixty-eight million, eight hundred twelve thousand, five hundred thirteen".

Divisors: 1 83 307 25481 495960473 41164719259 152259865211 12637568812513