91276132944 has 80 divisors (see below), whose sum is σ = 244521210752. Its totient is φ = 29315602944.

The previous prime is 91276132931. The next prime is 91276132963. The reversal of 91276132944 is 44923167219.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 91276132893 and 91276132902.

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, 66559 + ... + 432414.

Almost surely, 2^91276132944 is an apocalyptic number.

It is an amenable number.

91276132944 is an abundant number, since it is smaller than the sum of its proper divisors (153245077808).

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

91276132944 is a wasteful number, since it uses less digits than its factorization.

91276132944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499124 (or 499118 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The spelling of 91276132944 in words is "ninety-one billion, two hundred seventy-six million, one hundred thirty-two thousand, nine hundred forty-four".