8193938145 has 16 divisors (see below), whose sum is σ = 13137233280. Its totient is φ = 4361122944.

The previous prime is 8193938131. The next prime is 8193938153. The reversal of 8193938145 is 5418393918.

It is not a de Polignac number, because 8193938145 - 2¹⁴ = 8193921761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553540 + ... + 568149.

It is an arithmetic number, because the mean of its divisors is an integer number (821077080).

Almost surely, 2^8193938145 is an apocalyptic number.

It is an amenable number.

8193938145 is a deficient number, since it is larger than the sum of its proper divisors (4943295135).

8193938145 is a wasteful number, since it uses less digits than its factorization.

8193938145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122184.

The product of its digits is 933120, while the sum is 51.

The square root of 8193938145 is about 90520.3741982986. The cubic root of 8193938145 is about 2016.0326457909.

The spelling of 8193938145 in words is "eight billion, one hundred ninety-three million, nine hundred thirty-eight thousand, one hundred forty-five".