9118872045 has 24 divisors (see below), whose sum is σ = 15808301496. Its totient is φ = 4862704128.

The previous prime is 9118872041. The next prime is 9118872071. The reversal of 9118872045 is 5402788119.

It can be written as a sum of positive squares in 4 ways, for example, as 2341301769 + 6777570276 = 48387^2 + 82326^2 .

It is not a de Polignac number, because 9118872045 - 2² = 9118872041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9118872041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 526849 + ... + 543881.

It is an arithmetic number, because the mean of its divisors is an integer number (658679229).

Almost surely, 2^9118872045 is an apocalyptic number.

It is an amenable number.

9118872045 is a deficient number, since it is larger than the sum of its proper divisors (6689429451).

9118872045 is a wasteful number, since it uses less digits than its factorization.

9118872045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28941 (or 28938 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 9118872045 is about 95492.7853033935. The cubic root of 9118872045 is about 2089.2017162235.

The spelling of 9118872045 in words is "nine billion, one hundred eighteen million, eight hundred seventy-two thousand, forty-five".