642234232508 has 48 divisors (see below), whose sum is σ = 1247467495680. Its totient is φ = 286873488000.

The previous prime is 642234232447. The next prime is 642234232531. The reversal of 642234232508 is 805232432246.

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, 135233 + ... + 1141383.

It is an arithmetic number, because the mean of its divisors is an integer number (25988906160).

Almost surely, 2^642234232508 is an apocalyptic number.

It is an amenable number.

642234232508 is a deficient number, since it is larger than the sum of its proper divisors (605233263172).

642234232508 is a wasteful number, since it uses less digits than its factorization.

642234232508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006418 (or 1006416 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 642234232508 in words is "six hundred forty-two billion, two hundred thirty-four million, two hundred thirty-two thousand, five hundred eight".