641945074 has 16 divisors (see below), whose sum is σ = 985491360. Its totient is φ = 313535200.

The previous prime is 641945069. The next prime is 641945089. The reversal of 641945074 is 470549146.

641945074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 6952 + ... + 36499.

It is an arithmetic number, because the mean of its divisors is an integer number (61593210).

Almost surely, 2^641945074 is an apocalyptic number.

641945074 is a deficient number, since it is larger than the sum of its proper divisors (343546286).

641945074 is a wasteful number, since it uses less digits than its factorization.

641945074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43625.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 641945074 is about 25336.6350173025. The cubic root of 641945074 is about 862.6460211780.

The spelling of 641945074 in words is "six hundred forty-one million, nine hundred forty-five thousand, seventy-four".