42251539836 has 48 divisors (see below), whose sum is σ = 107817712128. Its totient is φ = 12771552000.

The previous prime is 42251539829. The next prime is 42251539877. The reversal of 42251539836 is 63893515224.

It is a congruent number.

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, 346180 + ... + 452043.

It is an arithmetic number, because the mean of its divisors is an integer number (2246202336).

Almost surely, 2^42251539836 is an apocalyptic number.

It is an amenable number.

42251539836 is an abundant number, since it is smaller than the sum of its proper divisors (65566172292).

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

42251539836 is a wasteful number, since it uses less digits than its factorization.

42251539836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798642 (or 798640 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 48.

The spelling of 42251539836 in words is "forty-two billion, two hundred fifty-one million, five hundred thirty-nine thousand, eight hundred thirty-six".