42406890860 has 24 divisors (see below), whose sum is σ = 89842568256. Its totient is φ = 16812642560.

The previous prime is 42406890857. The next prime is 42406890899. The reversal of 42406890860 is 6809860424.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9379796 + ... + 9384315.

It is an arithmetic number, because the mean of its divisors is an integer number (3743440344).

Almost surely, 2^42406890860 is an apocalyptic number.

It is an amenable number.

42406890860 is an abundant number, since it is smaller than the sum of its proper divisors (47435677396).

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

42406890860 is a wasteful number, since it uses less digits than its factorization.

42406890860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18764233 (or 18764231 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 42406890860 in words is "forty-two billion, four hundred six million, eight hundred ninety thousand, eight hundred sixty".