91694992480 has 288 divisors, whose sum is σ = 275352364224. Its totient is φ = 28233474048.

The previous prime is 91694992463. The next prime is 91694992481. The reversal of 91694992480 is 8429949619.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91694992481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6996814 + ... + 7009906.

It is an arithmetic number, because the mean of its divisors is an integer number (956084598).

Almost surely, 2^91694992480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91694992480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137676182112).

91694992480 is an abundant number, since it is smaller than the sum of its proper divisors (183657371744).

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

91694992480 is a wasteful number, since it uses less digits than its factorization.

91694992480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13178 (or 13157 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 61.

The spelling of 91694992480 in words is "ninety-one billion, six hundred ninety-four million, nine hundred ninety-two thousand, four hundred eighty".