18268307724 has 24 divisors (see below), whose sum is σ = 42689407600. Its totient is φ = 6080385024.

The previous prime is 18268307723. The next prime is 18268307731. The reversal of 18268307724 is 42770386281.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18268307723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122949 + ... + 1139100.

Almost surely, 2^18268307724 is an apocalyptic number.

It is an amenable number.

18268307724 is an abundant number, since it is smaller than the sum of its proper divisors (24421099876).

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

18268307724 is a wasteful number, since it uses less digits than its factorization.

18268307724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262729 (or 2262727 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 18268307724 in words is "eighteen billion, two hundred sixty-eight million, three hundred seven thousand, seven hundred twenty-four".