18026307925625 has 10 divisors (see below), whose sum is σ = 22525674384642. Its totient is φ = 14421046340000.

The previous prime is 18026307925559. The next prime is 18026307925721. The reversal of 18026307925625 is 52652970362081.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 1936750955584 + 16089556970041 = 1391672^2 + 4011179^2 .

It is not a de Polignac number, because 18026307925625 - 2⁸ = 18026307925369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14421045716 + ... + 14421046965.

Almost surely, 2^{18026307925625} is an apocalyptic number.

It is an amenable number.

18026307925625 is a deficient number, since it is larger than the sum of its proper divisors (4499366459017).

18026307925625 is an frugal number, since it uses more digits than its factorization.

18026307925625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28842092701 (or 28842092686 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 18026307925625 in words is "eighteen trillion, twenty-six billion, three hundred seven million, nine hundred twenty-five thousand, six hundred twenty-five".