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12637638751371 = 329145260215533
BaseRepresentation
bin1011011111100110110111…
…1101111111010010001011
31122202010221202212211121020
42313321231331333102023
53124023341010020441
642513352345243523
72443016316662364
oct267715575772213
948663852784536
1012637638751371
114032657681397
1215013137935a3
137089551610ba
143199449bab6b
1516db02305e66
hexb7e6df7f48b

12637638751371 has 8 divisors (see below), whose sum is σ = 17431225864080. Its totient is φ = 8134572069792.

The previous prime is 12637638751349. The next prime is 12637638751433. The reversal of 12637638751371 is 17315783673621.

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

It is a de Polignac number, because none of the positive numbers 2k-12637638751371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12637638751321) 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, 72630107680 + ... + 72630107853.

It is an arithmetic number, because the mean of its divisors is an integer number (2178903233010).

Almost surely, 212637638751371 is an apocalyptic number.

12637638751371 is a deficient number, since it is larger than the sum of its proper divisors (4793587112709).

12637638751371 is a wasteful number, since it uses less digits than its factorization.

12637638751371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145260215565.

The product of its digits is 26671680, while the sum is 60.

The spelling of 12637638751371 in words is "twelve trillion, six hundred thirty-seven billion, six hundred thirty-eight million, seven hundred fifty-one thousand, three hundred seventy-one".

Divisors: 1 3 29 87 145260215533 435780646599 4212546250457 12637638751371