86704492031 has 2 divisors, whose sum is σ = 86704492032. Its totient is φ = 86704492030.

The previous prime is 86704491977. The next prime is 86704492073. The reversal of 86704492031 is 13029440768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86704492031 - 2²⁶ = 86637383167 is a prime.

It is a super-2 number, since 2×86704492031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86704497031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43352246015 + 43352246016.

It is an arithmetic number, because the mean of its divisors is an integer number (43352246016).

Almost surely, 2^86704492031 is an apocalyptic number.

86704492031 is a deficient number, since it is larger than the sum of its proper divisors (1).

86704492031 is an equidigital number, since it uses as much as digits as its factorization.

86704492031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 86704492031 in words is "eighty-six billion, seven hundred four million, four hundred ninety-two thousand, thirty-one".