85137901551231 has 16 divisors (see below), whose sum is σ = 115124281924608. Its totient is φ = 55955175634400.

The previous prime is 85137901551221. The next prime is 85137901551299. The reversal of 85137901551231 is 13215510973158.

It is a cyclic number.

It is not a de Polignac number, because 85137901551231 - 2²⁷ = 85137767333503 is a prime.

It is a super-2 number, since 2×85137901551231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85137901551221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11334060 + ... + 17284001.

It is an arithmetic number, because the mean of its divisors is an integer number (7195267620288).

Almost surely, 2^{85137901551231} is an apocalyptic number.

85137901551231 is a deficient number, since it is larger than the sum of its proper divisors (29986380373377).

85137901551231 is a wasteful number, since it uses less digits than its factorization.

85137901551231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28632102.

The product of its (nonzero) digits is 1134000, while the sum is 51.

The spelling of 85137901551231 in words is "eighty-five trillion, one hundred thirty-seven billion, nine hundred one million, five hundred fifty-one thousand, two hundred thirty-one".