878444890428 has 48 divisors (see below), whose sum is σ = 2354784251904. Its totient is φ = 249670196160.

The previous prime is 878444890403. The next prime is 878444890441. The reversal of 878444890428 is 824098444878.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27360075 + ... + 27392162.

It is an arithmetic number, because the mean of its divisors is an integer number (49058005248).

Almost surely, 2^878444890428 is an apocalyptic number.

It is an amenable number.

878444890428 is an abundant number, since it is smaller than the sum of its proper divisors (1476339361476).

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

878444890428 is a wasteful number, since it uses less digits than its factorization.

878444890428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54752442 (or 54752440 counting only the distinct ones).

The product of its (nonzero) digits is 132120576, while the sum is 66.

The spelling of 878444890428 in words is "eight hundred seventy-eight billion, four hundred forty-four million, eight hundred ninety thousand, four hundred twenty-eight".