18700015504 has 45 divisors (see below), whose sum is σ = 38507047761. Its totient is φ = 8795631360.

The previous prime is 18700015489. The next prime is 18700015507. The reversal of 18700015504 is 40551000781.

The square root of 18700015504 is 136748.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14558835600 + 4141179904 = 120660^2 + 64352^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18700015507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9297859 + ... + 9299869.

Almost surely, 2^18700015504 is an apocalyptic number.

18700015504 is the 136748-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18700015504

18700015504 is an abundant number, since it is smaller than the sum of its proper divisors (19807032257).

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

18700015504 is an frugal number, since it uses more digits than its factorization.

18700015504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The spelling of 18700015504 in words is "eighteen billion, seven hundred million, fifteen thousand, five hundred four".