91162443008 has 144 divisors (see below), whose sum is σ = 231187977216. Its totient is φ = 34900623360.

The previous prime is 91162442957. The next prime is 91162443049. The reversal of 91162443008 is 80034426119.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659060 + ... + 785292.

It is an arithmetic number, because the mean of its divisors is an integer number (1605472064).

Almost surely, 2^91162443008 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 91162443008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115593988608).

91162443008 is an abundant number, since it is smaller than the sum of its proper divisors (140025534208).

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

91162443008 is a wasteful number, since it uses less digits than its factorization.

91162443008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126300 (or 126286 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 91162443008 in words is "ninety-one billion, one hundred sixty-two million, four hundred forty-three thousand, eight".