879520025979 has 32 divisors (see below), whose sum is σ = 1489667735040. Its totient is φ = 502402883616.

The previous prime is 879520025957. The next prime is 879520026001. The reversal of 879520025979 is 979520025978.

879520025979 is a `hidden beast` number, since 87 + 9 + 520 + 0 + 25 + 9 + 7 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (879520025957) and next prime (879520026001).

It is not a de Polignac number, because 879520025979 - 2⁷ = 879520025851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (879520045979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303249 + ... + 1360514.

It is an arithmetic number, because the mean of its divisors is an integer number (46552116720).

Almost surely, 2^879520025979 is an apocalyptic number.

879520025979 is a deficient number, since it is larger than the sum of its proper divisors (610147709061).

879520025979 is a wasteful number, since it uses less digits than its factorization.

879520025979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666576 (or 1666570 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 63.

Subtracting 879520025979 from its reverse (979520025978), we obtain a palindrome (99999999999).

The spelling of 879520025979 in words is "eight hundred seventy-nine billion, five hundred twenty million, twenty-five thousand, nine hundred seventy-nine".