91456488340 has 48 divisors (see below), whose sum is σ = 219525812352. Its totient is φ = 31352190336.

The previous prime is 91456488317. The next prime is 91456488491. The reversal of 91456488340 is 4388465419.

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, 1073802 + ... + 1155838.

It is an arithmetic number, because the mean of its divisors is an integer number (4573454424).

Almost surely, 2^91456488340 is an apocalyptic number.

It is an amenable number.

91456488340 is an abundant number, since it is smaller than the sum of its proper divisors (128069324012).

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

91456488340 is a wasteful number, since it uses less digits than its factorization.

91456488340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90016 (or 90014 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 91456488340 in words is "ninety-one billion, four hundred fifty-six million, four hundred eighty-eight thousand, three hundred forty".