879812981951 has 2 divisors, whose sum is σ = 879812981952. Its totient is φ = 879812981950.

The previous prime is 879812981891. The next prime is 879812981977. The reversal of 879812981951 is 159189218978.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 879812981951 - 2²² = 879808787647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879812981351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439906490975 + 439906490976.

It is an arithmetic number, because the mean of its divisors is an integer number (439906490976).

Almost surely, 2^879812981951 is an apocalyptic number.

879812981951 is a deficient number, since it is larger than the sum of its proper divisors (1).

879812981951 is an equidigital number, since it uses as much as digits as its factorization.

879812981951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 68.

The spelling of 879812981951 in words is "eight hundred seventy-nine billion, eight hundred twelve million, nine hundred eighty-one thousand, nine hundred fifty-one".