86507857951 has 2 divisors, whose sum is σ = 86507857952. Its totient is φ = 86507857950.

The previous prime is 86507857927. The next prime is 86507858011. The reversal of 86507857951 is 15975870568.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86507857951 - 2¹³ = 86507849759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86507857951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86507857901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43253928975 + 43253928976.

It is an arithmetic number, because the mean of its divisors is an integer number (43253928976).

Almost surely, 2^86507857951 is an apocalyptic number.

86507857951 is a deficient number, since it is larger than the sum of its proper divisors (1).

86507857951 is an equidigital number, since it uses as much as digits as its factorization.

86507857951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168000, while the sum is 61.

The spelling of 86507857951 in words is "eighty-six billion, five hundred seven million, eight hundred fifty-seven thousand, nine hundred fifty-one".