18727992352 has 48 divisors (see below), whose sum is σ = 38825317440. Its totient is φ = 8867950848.

The previous prime is 18727992337. The next prime is 18727992373. The reversal of 18727992352 is 25329972781.

It is a junction number, because it is equal to n+sod(n) for n = 18727992293 and 18727992302.

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, 3156813 + ... + 3162739.

It is an arithmetic number, because the mean of its divisors is an integer number (808860780).

Almost surely, 2^18727992352 is an apocalyptic number.

It is an amenable number.

18727992352 is an abundant number, since it is smaller than the sum of its proper divisors (20097325088).

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

18727992352 is a wasteful number, since it uses less digits than its factorization.

18727992352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11153 (or 11145 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The spelling of 18727992352 in words is "eighteen billion, seven hundred twenty-seven million, nine hundred ninety-two thousand, three hundred fifty-two".