9111745538 has 48 divisors (see below), whose sum is σ = 16214313024. Its totient is φ = 3761768640.

The previous prime is 9111745523. The next prime is 9111745549. The reversal of 9111745538 is 8355471119.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9383393 + ... + 9384363.

It is an arithmetic number, because the mean of its divisors is an integer number (337798188).

Almost surely, 2^9111745538 is an apocalyptic number.

9111745538 is a deficient number, since it is larger than the sum of its proper divisors (7102567486).

9111745538 is a wasteful number, since it uses less digits than its factorization.

9111745538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835 (or 1806 counting only the distinct ones).

The product of its digits is 151200, while the sum is 44.

The square root of 9111745538 is about 95455.4636361900. The cubic root of 9111745538 is about 2088.6573290509.

The spelling of 9111745538 in words is "nine billion, one hundred eleven million, seven hundred forty-five thousand, five hundred thirty-eight".