641534264375 has 40 divisors (see below), whose sum is σ = 814941022896. Its totient is φ = 504795200000.

The previous prime is 641534264363. The next prime is 641534264429. The reversal of 641534264375 is 573462435146.

It is a de Polignac number, because none of the positive numbers 2^k-641534264375 is a prime.

It is a Duffinian number.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 9217205 + ... + 9286545.

Almost surely, 2^641534264375 is an apocalyptic number.

641534264375 is a deficient number, since it is larger than the sum of its proper divisors (173406758521).

641534264375 is a wasteful number, since it uses less digits than its factorization.

641534264375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69605 (or 69590 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 50.

The spelling of 641534264375 in words is "six hundred forty-one billion, five hundred thirty-four million, two hundred sixty-four thousand, three hundred seventy-five".