641316746 has 16 divisors (see below), whose sum is σ = 1103319360. Its totient is φ = 273870240.

The previous prime is 641316737. The next prime is 641316757. The reversal of 641316746 is 647613146.

It is a super-2 number, since 2×641316746² = 822574337400057032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77576 + ... + 85443.

It is an arithmetic number, because the mean of its divisors is an integer number (68957460).

Almost surely, 2^641316746 is an apocalyptic number.

641316746 is a deficient number, since it is larger than the sum of its proper divisors (462002614).

641316746 is a wasteful number, since it uses less digits than its factorization.

641316746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163309.

The product of its digits is 72576, while the sum is 38.

The square root of 641316746 is about 25324.2323871820. The cubic root of 641316746 is about 862.3644801709.

The spelling of 641316746 in words is "six hundred forty-one million, three hundred sixteen thousand, seven hundred forty-six".