91851953322 has 16 divisors (see below), whose sum is σ = 183778220160. Its totient is φ = 30604932192.

The previous prime is 91851953321. The next prime is 91851953353. The reversal of 91851953322 is 22335915819.

It is not an unprimeable number, because it can be changed into a prime (91851953321) 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, 3080322 + ... + 3109997.

It is an arithmetic number, because the mean of its divisors is an integer number (11486138760).

Almost surely, 2^91851953322 is an apocalyptic number.

91851953322 is an abundant number, since it is smaller than the sum of its proper divisors (91926266838).

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

91851953322 is a wasteful number, since it uses less digits than its factorization.

91851953322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192797.

The product of its digits is 583200, while the sum is 48.

The spelling of 91851953322 in words is "ninety-one billion, eight hundred fifty-one million, nine hundred fifty-three thousand, three hundred twenty-two".