91914144222 has 32 divisors (see below), whose sum is σ = 204886022400. Its totient is φ = 27318135168.

The previous prime is 91914144187. The next prime is 91914144281. The reversal of 91914144222 is 22244141919.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23711722 + ... + 23715597.

It is an arithmetic number, because the mean of its divisors is an integer number (6402688200).

Almost surely, 2^91914144222 is an apocalyptic number.

91914144222 is an abundant number, since it is smaller than the sum of its proper divisors (112971878178).

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

91914144222 is a wasteful number, since it uses less digits than its factorization.

91914144222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47427360.

The product of its digits is 41472, while the sum is 39.

The spelling of 91914144222 in words is "ninety-one billion, nine hundred fourteen million, one hundred forty-four thousand, two hundred twenty-two".