491080968 has 80 divisors (see below), whose sum is σ = 1571993280. Its totient is φ = 140307552.

The previous prime is 491080913. The next prime is 491080979. The reversal of 491080968 is 869080194.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49596 + ... + 58667.

It is an arithmetic number, because the mean of its divisors is an integer number (19649916).

Almost surely, 2^491080968 is an apocalyptic number.

It is an amenable number.

491080968 is an abundant number, since it is smaller than the sum of its proper divisors (1080912312).

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

491080968 is a wasteful number, since it uses less digits than its factorization.

491080968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108288 (or 108275 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 491080968 is about 22160.3467481897. The cubic root of 491080968 is about 788.9528228670.

The spelling of 491080968 in words is "four hundred ninety-one million, eighty thousand, nine hundred sixty-eight".