86531083157 has 2 divisors, whose sum is σ = 86531083158. Its totient is φ = 86531083156.

The previous prime is 86531083139. The next prime is 86531083213. The reversal of 86531083157 is 75138013568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86098817476 + 432265681 = 293426^2 + 20791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86531083157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86531083057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43265541578 + 43265541579.

It is an arithmetic number, because the mean of its divisors is an integer number (43265541579).

Almost surely, 2^86531083157 is an apocalyptic number.

It is an amenable number.

86531083157 is a deficient number, since it is larger than the sum of its proper divisors (1).

86531083157 is an equidigital number, since it uses as much as digits as its factorization.

86531083157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 86531083157 in words is "eighty-six billion, five hundred thirty-one million, eighty-three thousand, one hundred fifty-seven".