491927079696 has 80 divisors (see below), whose sum is σ = 1401946103040. Its totient is φ = 147670410240.

The previous prime is 491927079691. The next prime is 491927079713. The reversal of 491927079696 is 696970729194.

It is a self number, because there is not a number n which added to its sum of digits gives 491927079696.

It is not an unprimeable number, because it can be changed into a prime (491927079691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9588376 + ... + 9639543.

It is an arithmetic number, because the mean of its divisors is an integer number (17524326288).

Almost surely, 2^491927079696 is an apocalyptic number.

It is an amenable number.

491927079696 is an abundant number, since it is smaller than the sum of its proper divisors (910019023344).

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

491927079696 is a wasteful number, since it uses less digits than its factorization.

491927079696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19227984 (or 19227978 counting only the distinct ones).

The product of its (nonzero) digits is 92588832, while the sum is 69.

The spelling of 491927079696 in words is "four hundred ninety-one billion, nine hundred twenty-seven million, seventy-nine thousand, six hundred ninety-six".