8118911025 has 27 divisors (see below), whose sum is σ = 14544292971. Its totient is φ = 4329365040.

The previous prime is 8118910997. The next prime is 8118911027. The reversal of 8118911025 is 5201198118.

The square root of 8118911025 is 90105.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2922807969 + 5196103056 = 54063^2 + 72084^2 .

It is not a de Polignac number, because 8118911025 - 2⁵ = 8118910993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8118911027) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1348572 + ... + 1354578.

Almost surely, 2^8118911025 is an apocalyptic number.

8118911025 is the 90105-th square number.

8118911025 is the 45053-rd centered octagonal number.

It is an amenable number.

8118911025 is a deficient number, since it is larger than the sum of its proper divisors (6425381946).

8118911025 is an frugal number, since it uses more digits than its factorization.

8118911025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12030 (or 6015 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 36.

The cubic root of 8118911025 is about 2009.8605568965.

Multiplying 8118911025 by its sum of digits (36), we get a square (292280796900 = 540630²).

The spelling of 8118911025 in words is "eight billion, one hundred eighteen million, nine hundred eleven thousand, twenty-five".