86256214531 has 8 divisors (see below), whose sum is σ = 91274183424. Its totient is φ = 81343887240.

The previous prime is 86256214519. The next prime is 86256214547. The reversal of 86256214531 is 13541265268.

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 86256214531 - 2⁹ = 86256214019 is a prime.

It is a super-2 number, since 2×86256214531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86256214571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26408721 + ... + 26411986.

It is an arithmetic number, because the mean of its divisors is an integer number (11409272928).

Almost surely, 2^86256214531 is an apocalyptic number.

86256214531 is a deficient number, since it is larger than the sum of its proper divisors (5017968893).

86256214531 is a wasteful number, since it uses less digits than its factorization.

86256214531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52820801.

The product of its digits is 345600, while the sum is 43.

Adding to 86256214531 its reverse (13541265268), we get a palindrome (99797479799).

The spelling of 86256214531 in words is "eighty-six billion, two hundred fifty-six million, two hundred fourteen thousand, five hundred thirty-one".