18298785325 has 18 divisors (see below), whose sum is σ = 22738288766. Its totient is φ = 14608251840.

The previous prime is 18298785293. The next prime is 18298785343. The reversal of 18298785325 is 52358789281.

It can be written as a sum of positive squares in 9 ways, for example, as 3247204 + 18295538121 = 1802^2 + 135261^2 .

It is not a de Polignac number, because 18298785325 - 2⁵ = 18298785293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18298785325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11457427 + ... + 11459023.

Almost surely, 2^18298785325 is an apocalyptic number.

It is an amenable number.

18298785325 is a deficient number, since it is larger than the sum of its proper divisors (4439503441).

18298785325 is an frugal number, since it uses more digits than its factorization.

18298785325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961 (or 2279 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 58.

The spelling of 18298785325 in words is "eighteen billion, two hundred ninety-eight million, seven hundred eighty-five thousand, three hundred twenty-five".