641327265993 has 16 divisors (see below), whose sum is σ = 865431345600. Its totient is φ = 422395353600.

The previous prime is 641327265923. The next prime is 641327266001. The reversal of 641327265993 is 399562723146.

It is not a de Polignac number, because 641327265993 - 2⁸ = 641327265737 is a prime.

It is a super-2 number, since 2×641327265993² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641327265923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679323 + ... + 1320656.

It is an arithmetic number, because the mean of its divisors is an integer number (54089459100).

Almost surely, 2^641327265993 is an apocalyptic number.

It is an amenable number.

641327265993 is a deficient number, since it is larger than the sum of its proper divisors (224104079607).

641327265993 is a wasteful number, since it uses less digits than its factorization.

641327265993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001272.

The product of its digits is 14696640, while the sum is 57.

The spelling of 641327265993 in words is "six hundred forty-one billion, three hundred twenty-seven million, two hundred sixty-five thousand, nine hundred ninety-three".