641307875474 has 36 divisors (see below), whose sum is σ = 1131732667674. Its totient is φ = 271757743488.

The previous prime is 641307875437. The next prime is 641307875503. The reversal of 641307875474 is 474578703146.

It can be written as a sum of positive squares in 3 ways, for example, as 277089590449 + 364218285025 = 526393^2 + 603505^2 .

It is a super-2 number, since 2×641307875474² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 363182 + ... + 1189334.

Almost surely, 2^641307875474 is an apocalyptic number.

641307875474 is a deficient number, since it is larger than the sum of its proper divisors (490424792200).

641307875474 is an equidigital number, since it uses as much as digits as its factorization.

641307875474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826347 (or 826251 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 56.

The spelling of 641307875474 in words is "six hundred forty-one billion, three hundred seven million, eight hundred seventy-five thousand, four hundred seventy-four".