8253111618 has 48 divisors (see below), whose sum is σ = 19101243096. Its totient is φ = 2566287360.

The previous prime is 8253111547. The next prime is 8253111623. The reversal of 8253111618 is 8161113528.

8253111618 is a `hidden beast` number, since 8 + 2 + 5 + 31 + 1 + 1 + 618 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7197316569 + 1055795049 = 84837^2 + 32493^2 .

It is a super-2 number, since 2×8253111618² (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 23 ways as a sum of consecutive naturals, for example, 84763 + ... + 153918.

Almost surely, 2^8253111618 is an apocalyptic number.

8253111618 is an abundant number, since it is smaller than the sum of its proper divisors (10848131478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8253111618 is a wasteful number, since it uses less digits than its factorization.

8253111618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238819 (or 238816 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 8253111618 is about 90846.6379014656. The cubic root of 8253111618 is about 2020.8740146463.

It can be divided in two parts, 82531 and 11618, that added together give a palindrome (94149).

The spelling of 8253111618 in words is "eight billion, two hundred fifty-three million, one hundred eleven thousand, six hundred eighteen".