82961117873 has 2 divisors, whose sum is σ = 82961117874. Its totient is φ = 82961117872.

The previous prime is 82961117867. The next prime is 82961117893. The reversal of 82961117873 is 37871116928.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68304867904 + 14656249969 = 261352^2 + 121063^2 .

It is a cyclic number.

It is not a de Polignac number, because 82961117873 - 2⁶ = 82961117809 is a prime.

It is not a weakly prime, because it can be changed into another prime (82961117893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41480558936 + 41480558937.

It is an arithmetic number, because the mean of its divisors is an integer number (41480558937).

Almost surely, 2^82961117873 is an apocalyptic number.

It is an amenable number.

82961117873 is a deficient number, since it is larger than the sum of its proper divisors (1).

82961117873 is an equidigital number, since it uses as much as digits as its factorization.

82961117873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 53.

The spelling of 82961117873 in words is "eighty-two billion, nine hundred sixty-one million, one hundred seventeen thousand, eight hundred seventy-three".