878321590572 has 192 divisors, whose sum is σ = 2230064234496. Its totient is φ = 268060262400.

The previous prime is 878321590567. The next prime is 878321590583. The reversal of 878321590572 is 275095123878.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 279986188 + ... + 279989324.

It is an arithmetic number, because the mean of its divisors is an integer number (11614917888).

Almost surely, 2^878321590572 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 878321590572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1115032117248).

878321590572 is an abundant number, since it is smaller than the sum of its proper divisors (1351742643924).

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

878321590572 is a wasteful number, since it uses less digits than its factorization.

878321590572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496 (or 3494 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 57.

The spelling of 878321590572 in words is "eight hundred seventy-eight billion, three hundred twenty-one million, five hundred ninety thousand, five hundred seventy-two".