86321201957 has 2 divisors, whose sum is σ = 86321201958. Its totient is φ = 86321201956.

The previous prime is 86321201927. The next prime is 86321202007. The reversal of 86321201957 is 75910212368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86134032196 + 187169761 = 293486^2 + 13681^2 .

It is a cyclic number.

It is not a de Polignac number, because 86321201957 - 2⁶ = 86321201893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86321201917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43160600978 + 43160600979.

It is an arithmetic number, because the mean of its divisors is an integer number (43160600979).

Almost surely, 2^86321201957 is an apocalyptic number.

It is an amenable number.

86321201957 is a deficient number, since it is larger than the sum of its proper divisors (1).

86321201957 is an equidigital number, since it uses as much as digits as its factorization.

86321201957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 86321201957 in words is "eighty-six billion, three hundred twenty-one million, two hundred one thousand, nine hundred fifty-seven".