83956094917 has 2 divisors, whose sum is σ = 83956094918. Its totient is φ = 83956094916.

The previous prime is 83956094909. The next prime is 83956094933. The reversal of 83956094917 is 71949065938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54712016836 + 29244078081 = 233906^2 + 171009^2 .

It is a cyclic number.

It is not a de Polignac number, because 83956094917 - 2³ = 83956094909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83956094947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41978047458 + 41978047459.

It is an arithmetic number, because the mean of its divisors is an integer number (41978047459).

Almost surely, 2^83956094917 is an apocalyptic number.

It is an amenable number.

83956094917 is a deficient number, since it is larger than the sum of its proper divisors (1).

83956094917 is an equidigital number, since it uses as much as digits as its factorization.

83956094917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 83956094917 in words is "eighty-three billion, nine hundred fifty-six million, ninety-four thousand, nine hundred seventeen".