641250013244013 has 36 divisors (see below), whose sum is σ = 963127682720320. Its totient is φ = 426921521150952.

The previous prime is 641250013243997. The next prime is 641250013244023. The reversal of 641250013244013 is 310442310052146.

641250013244013 is a `hidden beast` number, since 6 + 4 + 1 + 2 + 500 + 132 + 4 + 4 + 0 + 13 = 666.

It is not a de Polignac number, because 641250013244013 - 2⁴ = 641250013243997 is a prime.

It is a super-2 number, since 2×641250013244013² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641250013244023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61279045 + ... + 70976202.

Almost surely, 2^{641250013244013} is an apocalyptic number.

It is an amenable number.

641250013244013 is a deficient number, since it is larger than the sum of its proper divisors (321877669476307).

641250013244013 is an frugal number, since it uses more digits than its factorization.

641250013244013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132256010 (or 132255989 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 641250013244013 its reverse (310442310052146), we get a palindrome (951692323296159).

The spelling of 641250013244013 in words is "six hundred forty-one trillion, two hundred fifty billion, thirteen million, two hundred forty-four thousand, thirteen".