491057250572 has 24 divisors (see below), whose sum is σ = 988618579200. Its totient is φ = 209059376400.

The previous prime is 491057250559. The next prime is 491057250587. The reversal of 491057250572 is 275052750194.

It is a super-2 number, since 2×491057250572² (a number of 24 digits) 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, 58067822 + ... + 58076277.

It is an arithmetic number, because the mean of its divisors is an integer number (41192440800).

Almost surely, 2^491057250572 is an apocalyptic number.

It is an amenable number.

491057250572 is an abundant number, since it is smaller than the sum of its proper divisors (497561328628).

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

491057250572 is a wasteful number, since it uses less digits than its factorization.

491057250572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116144261 (or 116144259 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 491057250572 in words is "four hundred ninety-one billion, fifty-seven million, two hundred fifty thousand, five hundred seventy-two".