86231692457 has 2 divisors, whose sum is σ = 86231692458. Its totient is φ = 86231692456.

The previous prime is 86231692429. The next prime is 86231692513. The reversal of 86231692457 is 75429613268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86057742736 + 173949721 = 293356^2 + 13189^2 .

It is a cyclic number.

It is not a de Polignac number, because 86231692457 - 2⁸ = 86231692201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86231692399 and 86231692408.

It is not a weakly prime, because it can be changed into another prime (86231692957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43115846228 + 43115846229.

It is an arithmetic number, because the mean of its divisors is an integer number (43115846229).

Almost surely, 2^86231692457 is an apocalyptic number.

It is an amenable number.

86231692457 is a deficient number, since it is larger than the sum of its proper divisors (1).

86231692457 is an equidigital number, since it uses as much as digits as its factorization.

86231692457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 53.

It can be divided in two parts, 86231 and 692457, that added together give a cube (778688 = 92³).

The spelling of 86231692457 in words is "eighty-six billion, two hundred thirty-one million, six hundred ninety-two thousand, four hundred fifty-seven".