9149986945 has 16 divisors (see below), whose sum is σ = 11985599808. Its totient is φ = 6650405440.

The previous prime is 9149986927. The next prime is 9149986949. The reversal of 9149986945 is 5496899419.

It is not a de Polignac number, because 9149986945 - 2¹¹ = 9149984897 is a prime.

It is a super-2 number, since 2×9149986945² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9149986949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39222 + ... + 140848.

It is an arithmetic number, because the mean of its divisors is an integer number (749099988).

Almost surely, 2^9149986945 is an apocalyptic number.

It is an amenable number.

9149986945 is a deficient number, since it is larger than the sum of its proper divisors (2835612863).

9149986945 is a wasteful number, since it uses less digits than its factorization.

9149986945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103280.

The product of its digits is 25194240, while the sum is 64.

The square root of 9149986945 is about 95655.5641089425. The cubic root of 9149986945 is about 2091.5752373560.

The spelling of 9149986945 in words is "nine billion, one hundred forty-nine million, nine hundred eighty-six thousand, nine hundred forty-five".