18675340625 has 36 divisors (see below), whose sum is σ = 23801390676. Its totient is φ = 14648400000.

The previous prime is 18675340603. The next prime is 18675340637. The reversal of 18675340625 is 52604357681.

It can be written as a sum of positive squares in 18 ways, for example, as 800720209 + 17874620416 = 28297^2 + 133696^2 .

It is not a de Polignac number, because 18675340625 - 2²² = 18671146321 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 18675340625.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59665469 + ... + 59665781.

It is an arithmetic number, because the mean of its divisors is an integer number (661149741).

Almost surely, 2^18675340625 is an apocalyptic number.

It is an amenable number.

18675340625 is a deficient number, since it is larger than the sum of its proper divisors (5126050051).

18675340625 is an frugal number, since it uses more digits than its factorization.

18675340625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 18675340625 in words is "eighteen billion, six hundred seventy-five million, three hundred forty thousand, six hundred twenty-five".