86251257285431 has 12 divisors (see below), whose sum is σ = 101123119588608. Its totient is φ = 73347525875232.

The previous prime is 86251257285407. The next prime is 86251257285437. The reversal of 86251257285431 is 13458275215268.

It is not a de Polignac number, because 86251257285431 - 2³⁰ = 86250183543607 is a prime.

It is a super-2 number, since 2×86251257285431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86251257285437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6930032126 + ... + 6930044571.

It is an arithmetic number, because the mean of its divisors is an integer number (8426926632384).

Almost surely, 2^{86251257285431} is an apocalyptic number.

86251257285431 is a deficient number, since it is larger than the sum of its proper divisors (14871862303177).

86251257285431 is a wasteful number, since it uses less digits than its factorization.

86251257285431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13860076838 (or 13860076831 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 59.

The spelling of 86251257285431 in words is "eighty-six trillion, two hundred fifty-one billion, two hundred fifty-seven million, two hundred eighty-five thousand, four hundred thirty-one".