91481548235 has 64 divisors (see below), whose sum is σ = 141487202304. Its totient is φ = 55107302400.

The previous prime is 91481548211. The next prime is 91481548243. The reversal of 91481548235 is 53284518419.

It is a de Polignac number, because none of the positive numbers 2^k-91481548235 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8743127 + ... + 8753583.

It is an arithmetic number, because the mean of its divisors is an integer number (2210737536).

Almost surely, 2^91481548235 is an apocalyptic number.

91481548235 is a deficient number, since it is larger than the sum of its proper divisors (50005654069).

91481548235 is a wasteful number, since it uses less digits than its factorization.

91481548235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11244.

The product of its digits is 1382400, while the sum is 50.

The spelling of 91481548235 in words is "ninety-one billion, four hundred eighty-one million, five hundred forty-eight thousand, two hundred thirty-five".