18357067725 has 24 divisors (see below), whose sum is σ = 31329399552. Its totient is φ = 9474614400.

The previous prime is 18357067709. The next prime is 18357067793. The reversal of 18357067725 is 52776075381.

It is not a de Polignac number, because 18357067725 - 2⁴ = 18357067709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3945432 + ... + 3950081.

It is an arithmetic number, because the mean of its divisors is an integer number (1305391648).

Almost surely, 2^18357067725 is an apocalyptic number.

18357067725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18357067725 is a deficient number, since it is larger than the sum of its proper divisors (12972331827).

18357067725 is a wasteful number, since it uses less digits than its factorization.

18357067725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895557 (or 7895552 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 18357067725 in words is "eighteen billion, three hundred fifty-seven million, sixty-seven thousand, seven hundred twenty-five".