879520025957 has 2 divisors, whose sum is σ = 879520025958. Its totient is φ = 879520025956.

The previous prime is 879520025899. The next prime is 879520026001. The reversal of 879520025957 is 759520025978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 817060519396 + 62459506561 = 903914^2 + 249919^2 .

It is a cyclic number.

It is not a de Polignac number, because 879520025957 - 2²⁶ = 879452917093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 879520025896 and 879520025905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879520075957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439760012978 + 439760012979.

It is an arithmetic number, because the mean of its divisors is an integer number (439760012979).

Almost surely, 2^879520025957 is an apocalyptic number.

It is an amenable number.

879520025957 is a deficient number, since it is larger than the sum of its proper divisors (1).

879520025957 is an equidigital number, since it uses as much as digits as its factorization.

879520025957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876000, while the sum is 59.

The spelling of 879520025957 in words is "eight hundred seventy-nine billion, five hundred twenty million, twenty-five thousand, nine hundred fifty-seven".