491335500004 has 12 divisors (see below), whose sum is σ = 859870921644. Its totient is φ = 245658093824.

The previous prime is 491335499999. The next prime is 491335500067. The reversal of 491335500004 is 400005533194.

It can be written as a sum of positive squares in 2 ways, for example, as 6265039104 + 485070460900 = 79152^2 + 696470^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2298949 + ... + 2503564.

It is an arithmetic number, because the mean of its divisors is an integer number (71655910137).

Almost surely, 2^491335500004 is an apocalyptic number.

It is an amenable number.

491335500004 is a deficient number, since it is larger than the sum of its proper divisors (368535421640).

491335500004 is a wasteful number, since it uses less digits than its factorization.

491335500004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828094 (or 4828092 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 491335500004 in words is "four hundred ninety-one billion, three hundred thirty-five million, five hundred thousand, four".