91895113744 has 80 divisors (see below), whose sum is σ = 212553538560. Its totient is φ = 37631468160.

The previous prime is 91895113733. The next prime is 91895113753. The reversal of 91895113744 is 44731159819.

It is a junction number, because it is equal to n+sod(n) for n = 91895113691 and 91895113700.

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, 2482927 + ... + 2519665.

It is an arithmetic number, because the mean of its divisors is an integer number (2656919232).

Almost surely, 2^91895113744 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 91895113744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106276769280).

91895113744 is an abundant number, since it is smaller than the sum of its proper divisors (120658424816).

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

91895113744 is a wasteful number, since it uses less digits than its factorization.

91895113744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37748 (or 37742 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The spelling of 91895113744 in words is "ninety-one billion, eight hundred ninety-five million, one hundred thirteen thousand, seven hundred forty-four".