642458130396 has 24 divisors (see below), whose sum is σ = 1499582960400. Its totient is φ = 214079283072.

The previous prime is 642458130343. The next prime is 642458130407. The reversal of 642458130396 is 693031854246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9141921 + ... + 9211928.

It is an arithmetic number, because the mean of its divisors is an integer number (62482623350).

Almost surely, 2^642458130396 is an apocalyptic number.

It is an amenable number.

642458130396 is an abundant number, since it is smaller than the sum of its proper divisors (857124830004).

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

642458130396 is a wasteful number, since it uses less digits than its factorization.

642458130396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18356773 (or 18356771 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 642458130396 in words is "six hundred forty-two billion, four hundred fifty-eight million, one hundred thirty thousand, three hundred ninety-six".