86764231951 has 2 divisors, whose sum is σ = 86764231952. Its totient is φ = 86764231950.

The previous prime is 86764231927. The next prime is 86764231963. The reversal of 86764231951 is 15913246768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86764231951 - 2²⁷ = 86630014223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86764231051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43382115975 + 43382115976.

It is an arithmetic number, because the mean of its divisors is an integer number (43382115976).

Almost surely, 2^86764231951 is an apocalyptic number.

86764231951 is a deficient number, since it is larger than the sum of its proper divisors (1).

86764231951 is an equidigital number, since it uses as much as digits as its factorization.

86764231951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The spelling of 86764231951 in words is "eighty-six billion, seven hundred sixty-four million, two hundred thirty-one thousand, nine hundred fifty-one".