12018173425 has 6 divisors (see below), whose sum is σ = 14902535078. Its totient is φ = 9614538720.

The previous prime is 12018173357. The next prime is 12018173471. The reversal of 12018173425 is 52437181021.

It can be written as a sum of positive squares in 3 ways, for example, as 1505362401 + 10512811024 = 38799^2 + 102532^2 .

It is not a de Polignac number, because 12018173425 - 2¹⁵ = 12018140657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 240363444 + ... + 240363493.

Almost surely, 2^12018173425 is an apocalyptic number.

It is an amenable number.

12018173425 is a deficient number, since it is larger than the sum of its proper divisors (2884361653).

12018173425 is an equidigital number, since it uses as much as digits as its factorization.

12018173425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480726947 (or 480726942 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 12018173425 in words is "twelve billion, eighteen million, one hundred seventy-three thousand, four hundred twenty-five".