491883964744 has 16 divisors (see below), whose sum is σ = 922291286400. Its totient is φ = 245939621712.

The previous prime is 491883964727. The next prime is 491883964763. The reversal of 491883964744 is 447469388194.

It is a self number, because there is not a number n which added to its sum of digits gives 491883964744.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853429 + ... + 1308475.

It is an arithmetic number, because the mean of its divisors is an integer number (57643205400).

Almost surely, 2^491883964744 is an apocalyptic number.

It is an amenable number.

491883964744 is a deficient number, since it is larger than the sum of its proper divisors (430407321656).

491883964744 is a wasteful number, since it uses less digits than its factorization.

491883964744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590172 (or 590168 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 67.

The spelling of 491883964744 in words is "four hundred ninety-one billion, eight hundred eighty-three million, nine hundred sixty-four thousand, seven hundred forty-four".