91294875148 has 6 divisors (see below), whose sum is σ = 159766031516. Its totient is φ = 45647437572.

The previous prime is 91294875143. The next prime is 91294875197. The reversal of 91294875148 is 84157849219.

It is a junction number, because it is equal to n+sod(n) for n = 91294875092 and 91294875101.

It is not an unprimeable number, because it can be changed into a prime (91294875143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11411859390 + ... + 11411859397.

Almost surely, 2^91294875148 is an apocalyptic number.

It is an amenable number.

91294875148 is a deficient number, since it is larger than the sum of its proper divisors (68471156368).

91294875148 is a wasteful number, since it uses less digits than its factorization.

91294875148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22823718791 (or 22823718789 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 58.

The spelling of 91294875148 in words is "ninety-one billion, two hundred ninety-four million, eight hundred seventy-five thousand, one hundred forty-eight".