491927079694 has 16 divisors (see below), whose sum is σ = 761711448960. Its totient is φ = 238023636480.

The previous prime is 491927079691. The next prime is 491927079713. The reversal of 491927079694 is 496970729194.

It is a congruent number.

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

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 7 ways as a sum of consecutive naturals, for example, 4008802 + ... + 4129690.

It is an arithmetic number, because the mean of its divisors is an integer number (47606965560).

Almost surely, 2^491927079694 is an apocalyptic number.

491927079694 is a deficient number, since it is larger than the sum of its proper divisors (269784369266).

491927079694 is a wasteful number, since it uses less digits than its factorization.

491927079694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186555.

The product of its (nonzero) digits is 61725888, while the sum is 67.

The spelling of 491927079694 in words is "four hundred ninety-one billion, nine hundred twenty-seven million, seventy-nine thousand, six hundred ninety-four".