642484363832 has 16 divisors (see below), whose sum is σ = 1212048725640. Its totient is φ = 319271370336.

The previous prime is 642484363777. The next prime is 642484363847. The reversal of 642484363832 is 238363484246.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 246350063 + ... + 246352670.

Almost surely, 2^642484363832 is an apocalyptic number.

It is an amenable number.

642484363832 is a deficient number, since it is larger than the sum of its proper divisors (569564361808).

642484363832 is a wasteful number, since it uses less digits than its factorization.

642484363832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492702902 (or 492702898 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 53.

The spelling of 642484363832 in words is "six hundred forty-two billion, four hundred eighty-four million, three hundred sixty-three thousand, eight hundred thirty-two".