641447496 has 48 divisors (see below), whose sum is σ = 1761066060. Its totient is φ = 210885120.

The previous prime is 641447479. The next prime is 641447509. The reversal of 641447496 is 694744146.

641447496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 633528900 + 7918596 = 25170^2 + 2814^2 .

It is a super-2 number, since 2×641447496² = 822909780249340032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55765 + ... + 66276.

Almost surely, 2^641447496 is an apocalyptic number.

It is an amenable number.

641447496 is an abundant number, since it is smaller than the sum of its proper divisors (1119618564).

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

641447496 is a wasteful number, since it uses less digits than its factorization.

641447496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122126 (or 122119 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 641447496 is about 25326.8137751277. The cubic root of 641447496 is about 862.4230817354.

The spelling of 641447496 in words is "six hundred forty-one million, four hundred forty-seven thousand, four hundred ninety-six".