85336500913 has 2 divisors, whose sum is σ = 85336500914. Its totient is φ = 85336500912.

The previous prime is 85336500883. The next prime is 85336500917. The reversal of 85336500913 is 31900563358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49043202849 + 36293298064 = 221457^2 + 190508^2 .

It is a cyclic number.

It is not a de Polignac number, because 85336500913 - 2³³ = 76746566321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85336500913.

It is not a weakly prime, because it can be changed into another prime (85336500917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42668250456 + 42668250457.

It is an arithmetic number, because the mean of its divisors is an integer number (42668250457).

Almost surely, 2^85336500913 is an apocalyptic number.

It is an amenable number.

85336500913 is a deficient number, since it is larger than the sum of its proper divisors (1).

85336500913 is an equidigital number, since it uses as much as digits as its factorization.

85336500913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 85336500913 in words is "eighty-five billion, three hundred thirty-six million, five hundred thousand, nine hundred thirteen".