641298464266752 has 60 divisors (see below), whose sum is σ = 1850830789137330. Its totient is φ = 213766154754048.

The previous prime is 641298464266727. The next prime is 641298464266769. The reversal of 641298464266752 is 257662464892146.

641298464266752 is a `hidden beast` number, since 6 + 4 + 1 + 2 + 98 + 4 + 6 + 426 + 67 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 636984103239936 + 4314361026816 = 25238544^2 + 2077104^2 .

It is a super-2 number, since 2×641298464266752² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69585332227 + ... + 69585341442.

Almost surely, 2^{641298464266752} is an apocalyptic number.

It is an amenable number.

641298464266752 is an abundant number, since it is smaller than the sum of its proper divisors (1209532324870578).

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

641298464266752 is a wasteful number, since it uses less digits than its factorization.

641298464266752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139170673693 (or 139170673674 counting only the distinct ones).

The product of its digits is 1672151040, while the sum is 72.

The spelling of 641298464266752 in words is "six hundred forty-one trillion, two hundred ninety-eight billion, four hundred sixty-four million, two hundred sixty-six thousand, seven hundred fifty-two".