878232642940 has 24 divisors (see below), whose sum is σ = 1866508897680. Its totient is φ = 347060610048.

The previous prime is 878232642929. The next prime is 878232642953. The reversal of 878232642940 is 49246232878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264526245 + ... + 264529564.

It is an arithmetic number, because the mean of its divisors is an integer number (77771204070).

Almost surely, 2^878232642940 is an apocalyptic number.

It is an amenable number.

878232642940 is an abundant number, since it is smaller than the sum of its proper divisors (988276254740).

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

878232642940 is a wasteful number, since it uses less digits than its factorization.

878232642940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529055901 (or 529055899 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 878232642940 in words is "eight hundred seventy-eight billion, two hundred thirty-two million, six hundred forty-two thousand, nine hundred forty".