879942338964 has 36 divisors (see below), whose sum is σ = 2395398590676. Its totient is φ = 270751488768.

The previous prime is 879942338959. The next prime is 879942338981. The reversal of 879942338964 is 469833249978.

879942338964 is a `hidden beast` number, since 87 + 9 + 9 + 423 + 38 + 96 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 296689374864 + 583252964100 = 544692^2 + 763710^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 879942338892 and 879942338901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 940108869 + ... + 940109804.

It is an arithmetic number, because the mean of its divisors is an integer number (66538849741).

Almost surely, 2^879942338964 is an apocalyptic number.

It is an amenable number.

879942338964 is an abundant number, since it is smaller than the sum of its proper divisors (1515456251712).

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

879942338964 is a wasteful number, since it uses less digits than its factorization.

879942338964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880218696 (or 1880218691 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 72.

The spelling of 879942338964 in words is "eight hundred seventy-nine billion, nine hundred forty-two million, three hundred thirty-eight thousand, nine hundred sixty-four".