7958640621000 has 64 divisors (see below), whose sum is σ = 24830958746880. Its totient is φ = 2122304164800.

The previous prime is 7958640620963. The next prime is 7958640621011. The reversal of 7958640621000 is 1260468597.

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 15 ways as a sum of consecutive naturals, for example, 1326437104 + ... + 1326443103.

It is an arithmetic number, because the mean of its divisors is an integer number (387983730420).

Almost surely, 2^{7958640621000} is an apocalyptic number.

It is an amenable number.

7958640621000 is an abundant number, since it is smaller than the sum of its proper divisors (16872318125880).

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

7958640621000 is a wasteful number, since it uses less digits than its factorization.

7958640621000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652880231 (or 2652880217 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 7958640621000 in words is "seven trillion, nine hundred fifty-eight billion, six hundred forty million, six hundred twenty-one thousand".