641880458930 has 16 divisors (see below), whose sum is σ = 1159777929024. Its totient is φ = 255775938480.

The previous prime is 641880458917. The next prime is 641880458953. The reversal of 641880458930 is 39854088146.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122027876 + ... + 122033135.

It is an arithmetic number, because the mean of its divisors is an integer number (72486120564).

Almost surely, 2^641880458930 is an apocalyptic number.

641880458930 is a deficient number, since it is larger than the sum of its proper divisors (517897470094).

641880458930 is a wasteful number, since it uses less digits than its factorization.

641880458930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244061281.

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 641880458930 in words is "six hundred forty-one billion, eight hundred eighty million, four hundred fifty-eight thousand, nine hundred thirty".