91234454192 has 40 divisors (see below), whose sum is σ = 202033545216. Its totient is φ = 39097694016.

The previous prime is 91234454159. The next prime is 91234454197. The reversal of 91234454192 is 29145443219.

It is not an unprimeable number, because it can be changed into a prime (91234454197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2642513 + ... + 2676815.

Almost surely, 2^91234454192 is an apocalyptic number.

It is an amenable number.

91234454192 is an abundant number, since it is smaller than the sum of its proper divisors (110799091024).

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

91234454192 is a wasteful number, since it uses less digits than its factorization.

91234454192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58065 (or 58059 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The spelling of 91234454192 in words is "ninety-one billion, two hundred thirty-four million, four hundred fifty-four thousand, one hundred ninety-two".