18812825120 has 48 divisors (see below), whose sum is σ = 44456088600. Its totient is φ = 7523303424.

The previous prime is 18812825093. The next prime is 18812825153. The reversal of 18812825120 is 2152821881.

It can be written as a sum of positive squares in 4 ways, for example, as 6908269456 + 11904555664 = 83116^2 + 109108^2 .

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, 787106 + ... + 810654.

Almost surely, 2^18812825120 is an apocalyptic number.

18812825120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18812825120 is an abundant number, since it is smaller than the sum of its proper divisors (25643263480).

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

18812825120 is a wasteful number, since it uses less digits than its factorization.

18812825120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28557 (or 28549 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 38.

The spelling of 18812825120 in words is "eighteen billion, eight hundred twelve million, eight hundred twenty-five thousand, one hundred twenty".