18037063225 has 6 divisors (see below), whose sum is σ = 22365958430. Its totient is φ = 14429650560.

The previous prime is 18037063207. The next prime is 18037063237. The reversal of 18037063225 is 52236073081.

It can be written as a sum of positive squares in 3 ways, for example, as 4959539776 + 13077523449 = 70424^2 + 114357^2 .

It is not a de Polignac number, because 18037063225 - 2⁵ = 18037063193 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360741240 + ... + 360741289.

Almost surely, 2^18037063225 is an apocalyptic number.

It is an amenable number.

18037063225 is a deficient number, since it is larger than the sum of its proper divisors (4328895205).

18037063225 is an equidigital number, since it uses as much as digits as its factorization.

18037063225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721482539 (or 721482534 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 18037063225 in words is "eighteen billion, thirty-seven million, sixty-three thousand, two hundred twenty-five".