878776405042998 has 32 divisors (see below), whose sum is σ = 2191234672316160. Its totient is φ = 228253611699360.

The previous prime is 878776405042901. The next prime is 878776405043023. The reversal of 878776405042998 is 899240504677878.

It is a self number, because there is not a number n which added to its sum of digits gives 878776405042998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951056714953 + ... + 951056715876.

It is an arithmetic number, because the mean of its divisors is an integer number (68476083509880).

Almost surely, 2^{878776405042998} is an apocalyptic number.

878776405042998 is an abundant number, since it is smaller than the sum of its proper divisors (1312458267273162).

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

878776405042998 is a wasteful number, since it uses less digits than its factorization.

878776405042998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902113430852.

The product of its (nonzero) digits is 13655900160, while the sum is 84.

The spelling of 878776405042998 in words is "eight hundred seventy-eight trillion, seven hundred seventy-six billion, four hundred five million, forty-two thousand, nine hundred ninety-eight".