642964484248 has 32 divisors (see below), whose sum is σ = 1301352415200. Its totient is φ = 296901138688.

The previous prime is 642964484221. The next prime is 642964484251. The reversal of 642964484248 is 842484469246.

642964484248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 60242461 + ... + 60253132.

It is an arithmetic number, because the mean of its divisors is an integer number (40667262975).

Almost surely, 2^642964484248 is an apocalyptic number.

It is an amenable number.

642964484248 is an abundant number, since it is smaller than the sum of its proper divisors (658387930952).

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

642964484248 is a wasteful number, since it uses less digits than its factorization.

642964484248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120495651 (or 120495647 counting only the distinct ones).

The product of its digits is 84934656, while the sum is 61.

The spelling of 642964484248 in words is "six hundred forty-two billion, nine hundred sixty-four million, four hundred eighty-four thousand, two hundred forty-eight".