86542651775731 has 16 divisors (see below), whose sum is σ = 91252008806400. Its totient is φ = 81848755862208.

The previous prime is 86542651775689. The next prime is 86542651775743. The reversal of 86542651775731 is 13757715624568.

It is a cyclic number.

It is not a de Polignac number, because 86542651775731 - 2⁹ = 86542651775219 is a prime.

It is a super-2 number, since 2×86542651775731² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86542651775431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254397930 + ... + 254737888.

It is an arithmetic number, because the mean of its divisors is an integer number (5703250550400).

Almost surely, 2^{86542651775731} is an apocalyptic number.

86542651775731 is a deficient number, since it is larger than the sum of its proper divisors (4709357030669).

86542651775731 is a wasteful number, since it uses less digits than its factorization.

86542651775731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362658.

The product of its digits is 296352000, while the sum is 67.

The spelling of 86542651775731 in words is "eighty-six trillion, five hundred forty-two billion, six hundred fifty-one million, seven hundred seventy-five thousand, seven hundred thirty-one".