91834377832 has 16 divisors (see below), whose sum is σ = 172219126500. Its totient is φ = 45909277440.

The previous prime is 91834377823. The next prime is 91834377863. The reversal of 91834377832 is 23877343819.

It can be written as a sum of positive squares in 2 ways, for example, as 75533727556 + 16300650276 = 274834^2 + 127674^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939457 + ... + 1032592.

Almost surely, 2^91834377832 is an apocalyptic number.

It is an amenable number.

91834377832 is a deficient number, since it is larger than the sum of its proper divisors (80384748668).

91834377832 is a wasteful number, since it uses less digits than its factorization.

91834377832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977876 (or 1977872 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 55.

The spelling of 91834377832 in words is "ninety-one billion, eight hundred thirty-four million, three hundred seventy-seven thousand, eight hundred thirty-two".