18262734768 has 40 divisors (see below), whose sum is σ = 52420814000. Its totient is φ = 6087578112.

The previous prime is 18262734751. The next prime is 18262734779. The reversal of 18262734768 is 86743726281.

18262734768 is a `hidden beast` number, since 1 + 8 + 2 + 627 + 3 + 4 + 7 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21136993 + ... + 21137856.

It is an arithmetic number, because the mean of its divisors is an integer number (1310520350).

Almost surely, 2^18262734768 is an apocalyptic number.

18262734768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18262734768 is an abundant number, since it is smaller than the sum of its proper divisors (34158079232).

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

18262734768 is a wasteful number, since it uses less digits than its factorization.

18262734768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42274866 (or 42274854 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 18262734768 in words is "eighteen billion, two hundred sixty-two million, seven hundred thirty-four thousand, seven hundred sixty-eight".