91694426718 has 16 divisors (see below), whose sum is σ = 183454359696. Its totient is φ = 30553891200.

The previous prime is 91694426717. The next prime is 91694426731. The reversal of 91694426718 is 81762449619.

It is a super-2 number, since 2×91694426718² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91694426717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711221 + ... + 2744832.

It is an arithmetic number, because the mean of its divisors is an integer number (11465897481).

Almost surely, 2^91694426718 is an apocalyptic number.

91694426718 is an abundant number, since it is smaller than the sum of its proper divisors (91759932978).

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

91694426718 is a wasteful number, since it uses less digits than its factorization.

91694426718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458859.

The product of its digits is 5225472, while the sum is 57.

The spelling of 91694426718 in words is "ninety-one billion, six hundred ninety-four million, four hundred twenty-six thousand, seven hundred eighteen".