18756124036 has 12 divisors (see below), whose sum is σ = 35348080012. Its totient is φ = 8656672608.

The previous prime is 18756124007. The next prime is 18756124039. The reversal of 18756124036 is 63042165781.

It can be written as a sum of positive squares in 2 ways, for example, as 2928974400 + 15827149636 = 54120^2 + 125806^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18756123983 and 18756124001.

It is not an unprimeable number, because it can be changed into a prime (18756124039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180347295 + ... + 180347398.

Almost surely, 2^18756124036 is an apocalyptic number.

It is an amenable number.

18756124036 is a deficient number, since it is larger than the sum of its proper divisors (16591955976).

18756124036 is a wasteful number, since it uses less digits than its factorization.

18756124036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360694710 (or 360694708 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 18756124036 in words is "eighteen billion, seven hundred fifty-six million, one hundred twenty-four thousand, thirty-six".