91106948044 has 48 divisors (see below), whose sum is σ = 186710932800. Its totient is φ = 38082723840.

The previous prime is 91106948033. The next prime is 91106948047. The reversal of 91106948044 is 44084960119.

It is a junction number, because it is equal to n+sod(n) for n = 91106947985 and 91106948003.

It is not an unprimeable number, because it can be changed into a prime (91106948047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5038732 + ... + 5056780.

It is an arithmetic number, because the mean of its divisors is an integer number (3889811100).

Almost surely, 2^91106948044 is an apocalyptic number.

It is an amenable number.

91106948044 is an abundant number, since it is smaller than the sum of its proper divisors (95603984756).

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

91106948044 is a wasteful number, since it uses less digits than its factorization.

91106948044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22498 (or 22496 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 91106948044 in words is "ninety-one billion, one hundred six million, nine hundred forty-eight thousand, forty-four".