18087744748 has 12 divisors (see below), whose sum is σ = 31663312632. Its totient is φ = 9041084000.

The previous prime is 18087744679. The next prime is 18087744767. The reversal of 18087744748 is 84744778081.

It is a junction number, because it is equal to n+sod(n) for n = 18087744692 and 18087744701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682465 + ... + 708472.

It is an arithmetic number, because the mean of its divisors is an integer number (2638609386).

Almost surely, 2^18087744748 is an apocalyptic number.

It is an amenable number.

18087744748 is a deficient number, since it is larger than the sum of its proper divisors (13575567884).

18087744748 is a wasteful number, since it uses less digits than its factorization.

18087744748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394192 (or 1394190 counting only the distinct ones).

The product of its (nonzero) digits is 11239424, while the sum is 58.

It can be divided in two parts, 180877 and 44748, that added together give a square (225625 = 475²).

The spelling of 18087744748 in words is "eighteen billion, eighty-seven million, seven hundred forty-four thousand, seven hundred forty-eight".