91213068522 has 8 divisors (see below), whose sum is σ = 182426137056. Its totient is φ = 30404356172.

The previous prime is 91213068521. The next prime is 91213068601. The reversal of 91213068522 is 22586031219.

It is a sphenic number, since it is the product of 3 distinct primes.

91213068522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (91213068521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7601089038 + ... + 7601089049.

It is an arithmetic number, because the mean of its divisors is an integer number (22803267132).

Almost surely, 2^91213068522 is an apocalyptic number.

91213068522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

91213068522 is a wasteful number, since it uses less digits than its factorization.

91213068522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15202178092.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 91213068522 in words is "ninety-one billion, two hundred thirteen million, sixty-eight thousand, five hundred twenty-two".