17868045725 has 12 divisors (see below), whose sum is σ = 22359649620. Its totient is φ = 14163292800.

The previous prime is 17868045707. The next prime is 17868045731. The reversal of 17868045725 is 52754086871.

It can be written as a sum of positive squares in 6 ways, for example, as 1865289721 + 16002756004 = 43189^2 + 126502^2 .

It is not a de Polignac number, because 17868045725 - 2⁸ = 17868045469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3275816 + ... + 3281265.

It is an arithmetic number, because the mean of its divisors is an integer number (1863304135).

Almost surely, 2^17868045725 is an apocalyptic number.

It is an amenable number.

17868045725 is a deficient number, since it is larger than the sum of its proper divisors (4491603895).

17868045725 is a wasteful number, since it uses less digits than its factorization.

17868045725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557200 (or 6557195 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 17868045725 in words is "seventeen billion, eight hundred sixty-eight million, forty-five thousand, seven hundred twenty-five".