18359708004 has 81 divisors (see below), whose sum is σ = 51036692889. Its totient is φ = 5560837920.

The previous prime is 18359707973. The next prime is 18359708021. The reversal of 18359708004 is 40080795381.

The square root of 18359708004 is 135498.

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., 9477022500 + 8882685504 = 97350^2 + 94248^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8941842 + ... + 8943894.

Almost surely, 2^18359708004 is an apocalyptic number.

18359708004 is the 135498-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18359708004

18359708004 is an abundant number, since it is smaller than the sum of its proper divisors (32676984885).

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

18359708004 is a wasteful number, since it uses less digits than its factorization.

18359708004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138 (or 2069 counting only the distinct ones).

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

The spelling of 18359708004 in words is "eighteen billion, three hundred fifty-nine million, seven hundred eight thousand, four".