42042758664 has 16 divisors (see below), whose sum is σ = 105106896720. Its totient is φ = 14014252880.

The previous prime is 42042758657. The next prime is 42042758677. The reversal of 42042758664 is 46685724024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875890782 + ... + 875890829.

It is an arithmetic number, because the mean of its divisors is an integer number (6569181045).

Almost surely, 2^42042758664 is an apocalyptic number.

It is an amenable number.

42042758664 is an abundant number, since it is smaller than the sum of its proper divisors (63064138056).

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

42042758664 is a wasteful number, since it uses less digits than its factorization.

42042758664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751781620 (or 1751781616 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 42042758664 in words is "forty-two billion, forty-two million, seven hundred fifty-eight thousand, six hundred sixty-four".