879998524128 has 144 divisors (see below), whose sum is σ = 2518798778496. Its totient is φ = 291428133120.

The previous prime is 879998524123. The next prime is 879998524169. The reversal of 879998524128 is 821425899978.

879998524128 is a `hidden beast` number, since 8 + 7 + 9 + 9 + 98 + 524 + 1 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879998524123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27481375 + ... + 27513377.

It is an arithmetic number, because the mean of its divisors is an integer number (17491658184).

Almost surely, 2^879998524128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879998524128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259399389248).

879998524128 is an abundant number, since it is smaller than the sum of its proper divisors (1638800254368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879998524128 is a wasteful number, since it uses less digits than its factorization.

879998524128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32637 (or 32626 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 72.

The spelling of 879998524128 in words is "eight hundred seventy-nine billion, nine hundred ninety-eight million, five hundred twenty-four thousand, one hundred twenty-eight".