642626308000 has 48 divisors (see below), whose sum is σ = 1578932848584. Its totient is φ = 257050521600.

The previous prime is 642626307989. The next prime is 642626308033. The reversal of 642626308000 is 803626246.

It can be written as a sum of positive squares in 4 ways, for example, as 83666719504 + 558959588496 = 289252^2 + 747636^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80324289 + ... + 80332288.

Almost surely, 2^642626308000 is an apocalyptic number.

It is an amenable number.

642626308000 is an abundant number, since it is smaller than the sum of its proper divisors (936306540584).

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

642626308000 is a wasteful number, since it uses less digits than its factorization.

642626308000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160656602 (or 160656584 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 642626308000 in words is "six hundred forty-two billion, six hundred twenty-six million, three hundred eight thousand".