42402420423988 has 24 divisors (see below), whose sum is σ = 75462503608800. Its totient is φ = 20841710526048.

The previous prime is 42402420423967. The next prime is 42402420424061. The reversal of 42402420423988 is 88932402420424.

It is a congruent number.

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, 34567558 + ... + 35773186.

It is an arithmetic number, because the mean of its divisors is an integer number (3144270983700).

Almost surely, 2^{42402420423988} is an apocalyptic number.

It is an amenable number.

42402420423988 is a deficient number, since it is larger than the sum of its proper divisors (33060083184812).

42402420423988 is a wasteful number, since it uses less digits than its factorization.

42402420423988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354719 (or 1354717 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 52.

The spelling of 42402420423988 in words is "forty-two trillion, four hundred two billion, four hundred twenty million, four hundred twenty-three thousand, nine hundred eighty-eight".