491572415630 has 16 divisors (see below), whose sum is σ = 884839292064. Its totient is φ = 196626978720.

The previous prime is 491572415623. The next prime is 491572415683. The reversal of 491572415630 is 36514275194.

It is a happy number.

It is a congruent number.

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, 1183160 + ... + 1543700.

It is an arithmetic number, because the mean of its divisors is an integer number (55302455754).

Almost surely, 2^491572415630 is an apocalyptic number.

491572415630 is a deficient number, since it is larger than the sum of its proper divisors (393266876434).

491572415630 is a wasteful number, since it uses less digits than its factorization.

491572415630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496891.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 491572415630 in words is "four hundred ninety-one billion, five hundred seventy-two million, four hundred fifteen thousand, six hundred thirty".