18470612085025 has 27 divisors (see below), whose sum is σ = 23046004845619. Its totient is φ = 14685153991280.

The previous prime is 18470612085011. The next prime is 18470612085031. The reversal of 18470612085025 is 52058021607481.

The square root of 18470612085025 is 4297745.

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., 6649420350609 + 11821191734416 = 2578647^2 + 3438196^2 .

It is not a de Polignac number, because 18470612085025 - 2⁵ = 18470612084993 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 18470612085025.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 3588614502 + ... + 3588619648.

Almost surely, 2^{18470612085025} is an apocalyptic number.

18470612085025 is the 4297745-th square number.

18470612085025 is the 2148873-rd centered octagonal number.

It is an amenable number.

18470612085025 is a deficient number, since it is larger than the sum of its proper divisors (4575392760594).

18470612085025 is an frugal number, since it uses more digits than its factorization.

18470612085025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10638 (or 5319 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

Multiplying 18470612085025 by its sum of digits (49), we get a square (905059992166225 = 30084215²).

The spelling of 18470612085025 in words is "eighteen trillion, four hundred seventy billion, six hundred twelve million, eighty-five thousand, twenty-five".