18923758848 has 54 divisors (see below), whose sum is σ = 54561868634. Its totient is φ = 6307918848.

The previous prime is 18923758781. The next prime is 18923758853. The reversal of 18923758848 is 84885732981.

18923758848 is a `hidden beast` number, since 1 + 8 + 9 + 2 + 3 + 7 + 588 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18766808064 + 156950784 = 136992^2 + 12528^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4104415 + ... + 4109022.

Almost surely, 2^18923758848 is an apocalyptic number.

18923758848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18923758848 is an abundant number, since it is smaller than the sum of its proper divisors (35638109786).

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

18923758848 is an equidigital number, since it uses as much as digits as its factorization.

18923758848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213459 (or 8213442 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 18923758848 in words is "eighteen billion, nine hundred twenty-three million, seven hundred fifty-eight thousand, eight hundred forty-eight".