42878831172 has 48 divisors (see below), whose sum is σ = 105354332160. Its totient is φ = 13535810208.

The previous prime is 42878831167. The next prime is 42878831221. The reversal of 42878831172 is 27113887824.

42878831172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629493 + ... + 694275.

It is an arithmetic number, because the mean of its divisors is an integer number (2194881920).

Almost surely, 2^42878831172 is an apocalyptic number.

It is an amenable number.

42878831172 is an abundant number, since it is smaller than the sum of its proper divisors (62475500988).

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

42878831172 is a wasteful number, since it uses less digits than its factorization.

42878831172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67712 (or 67710 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 51.

The spelling of 42878831172 in words is "forty-two billion, eight hundred seventy-eight million, eight hundred thirty-one thousand, one hundred seventy-two".