491516104968 has 64 divisors (see below), whose sum is σ = 1560368592000. Its totient is φ = 140433172416.

The previous prime is 491516104951. The next prime is 491516104979. The reversal of 491516104968 is 869401615194.

491516104968 is a `hidden beast` number, since 4 + 9 + 15 + 1 + 610 + 4 + 9 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162536883 + ... + 162539906.

It is an arithmetic number, because the mean of its divisors is an integer number (24380759250).

Almost surely, 2^491516104968 is an apocalyptic number.

It is an amenable number.

491516104968 is an abundant number, since it is smaller than the sum of its proper divisors (1068852487032).

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

491516104968 is a wasteful number, since it uses less digits than its factorization.

491516104968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325076811 (or 325076801 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 491516104968 in words is "four hundred ninety-one billion, five hundred sixteen million, one hundred four thousand, nine hundred sixty-eight".