91694426760 has 192 divisors, whose sum is σ = 309689714880. Its totient is φ = 24400776960.

The previous prime is 91694426741. The next prime is 91694426779. The reversal of 91694426760 is 6762449619.

It is a happy number.

91694426760 is a `hidden beast` number, since 91 + 69 + 4 + 426 + 76 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (91694426741) and next prime (91694426779).

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

It is a junction number, because it is equal to n+sod(n) for n = 91694426697 and 91694426706.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4762914 + ... + 4782126.

It is an arithmetic number, because the mean of its divisors is an integer number (1612967265).

Almost surely, 2^91694426760 is an apocalyptic number.

91694426760 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91694426760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154844857440).

91694426760 is an abundant number, since it is smaller than the sum of its proper divisors (217995288120).

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

91694426760 is a wasteful number, since it uses less digits than its factorization.

91694426760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19730 (or 19714 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 91694426760 in words is "ninety-one billion, six hundred ninety-four million, four hundred twenty-six thousand, seven hundred sixty".