18378246560 has 48 divisors (see below), whose sum is σ = 44915812200. Its totient is φ = 7097803776.

The previous prime is 18378246533. The next prime is 18378246571. The reversal of 18378246560 is 6564287381.

It can be written as a sum of positive squares in 4 ways, for example, as 18282284944 + 95961616 = 135212^2 + 9796^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18378246499 and 18378246508.

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, 1975775 + ... + 1985054.

Almost surely, 2^18378246560 is an apocalyptic number.

18378246560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18378246560 is an abundant number, since it is smaller than the sum of its proper divisors (26537565640).

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

18378246560 is a wasteful number, since it uses less digits than its factorization.

18378246560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960873 (or 3960865 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 18378246560 in words is "eighteen billion, three hundred seventy-eight million, two hundred forty-six thousand, five hundred sixty".