9186816145 has 32 divisors (see below), whose sum is σ = 11992780800. Its totient is φ = 6715457280.

The previous prime is 9186816137. The next prime is 9186816151. The reversal of 9186816145 is 5416186819.

It is not a de Polignac number, because 9186816145 - 2³ = 9186816137 is a prime.

It is a super-2 number, since 2×9186816145² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4712631 + ... + 4714579.

It is an arithmetic number, because the mean of its divisors is an integer number (374774400).

Almost surely, 2^9186816145 is an apocalyptic number.

It is an amenable number.

9186816145 is a deficient number, since it is larger than the sum of its proper divisors (2805964655).

9186816145 is a wasteful number, since it uses less digits than its factorization.

9186816145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665.

The product of its digits is 414720, while the sum is 49.

The square root of 9186816145 is about 95847.8802321679. The cubic root of 9186816145 is about 2094.3777157381.

It can be divided in two parts, 9186816 and 145, that added together give a square (9186961 = 3031²).

The spelling of 9186816145 in words is "nine billion, one hundred eighty-six million, eight hundred sixteen thousand, one hundred forty-five".