18923008752 has 80 divisors (see below), whose sum is σ = 54986713760. Its totient is φ = 6307657920.

The previous prime is 18923008697. The next prime is 18923008777. The reversal of 18923008752 is 25780032981.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18923008698 and 18923008707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235399 + ... + 305382.

It is an arithmetic number, because the mean of its divisors is an integer number (687333922).

Almost surely, 2^18923008752 is an apocalyptic number.

18923008752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18923008752 is an abundant number, since it is smaller than the sum of its proper divisors (36063705008).

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

18923008752 is an frugal number, since it uses more digits than its factorization.

18923008752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540810 (or 540786 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 18923008752 in words is "eighteen billion, nine hundred twenty-three million, eight thousand, seven hundred fifty-two".