91349679776 has 48 divisors (see below), whose sum is σ = 183746465280. Its totient is φ = 44684709120.

The previous prime is 91349679769. The next prime is 91349679791. The reversal of 91349679776 is 67797694319.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4111385 + ... + 4133543.

It is an arithmetic number, because the mean of its divisors is an integer number (3828051360).

Almost surely, 2^91349679776 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 91349679776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91873232640).

91349679776 is an abundant number, since it is smaller than the sum of its proper divisors (92396785504).

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

91349679776 is a wasteful number, since it uses less digits than its factorization.

91349679776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24957 (or 24949 counting only the distinct ones).

The product of its digits is 108020304, while the sum is 68.

The spelling of 91349679776 in words is "ninety-one billion, three hundred forty-nine million, six hundred seventy-nine thousand, seven hundred seventy-six".