991359527322 has 16 divisors (see below), whose sum is σ = 1982753848512. Its totient is φ = 330447376800.

The previous prime is 991359527311. The next prime is 991359527339. The reversal of 991359527322 is 223725953199.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071763 + ... + 1769574.

It is an arithmetic number, because the mean of its divisors is an integer number (123922115532).

Almost surely, 2^991359527322 is an apocalyptic number.

991359527322 is an abundant number, since it is smaller than the sum of its proper divisors (991394321190).

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

991359527322 is a wasteful number, since it uses less digits than its factorization.

991359527322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899493.

The product of its digits is 9185400, while the sum is 57.

The spelling of 991359527322 in words is "nine hundred ninety-one billion, three hundred fifty-nine million, five hundred twenty-seven thousand, three hundred twenty-two".