18855354052 has 12 divisors (see below), whose sum is σ = 33010733056. Its totient is φ = 9423716040.

The previous prime is 18855354019. The next prime is 18855354053. The reversal of 18855354052 is 25045355881.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18855353993 and 18855354011.

It is not an unprimeable number, because it can be changed into a prime (18855354053) 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, 979524 + ... + 998587.

Almost surely, 2^18855354052 is an apocalyptic number.

It is an amenable number.

18855354052 is a deficient number, since it is larger than the sum of its proper divisors (14155379004).

18855354052 is a wasteful number, since it uses less digits than its factorization.

18855354052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980498 (or 1980496 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 46.

The spelling of 18855354052 in words is "eighteen billion, eight hundred fifty-five million, three hundred fifty-four thousand, fifty-two".