18758268825 has 24 divisors (see below), whose sum is σ = 31071064896. Its totient is φ = 9985896000.

The previous prime is 18758268811. The next prime is 18758268829. The reversal of 18758268825 is 52886285781.

It is not a de Polignac number, because 18758268825 - 2¹⁴ = 18758252441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18758268829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190581 + ... + 271730.

It is an arithmetic number, because the mean of its divisors is an integer number (1294627704).

Almost surely, 2^18758268825 is an apocalyptic number.

18758268825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18758268825 is a deficient number, since it is larger than the sum of its proper divisors (12312796071).

18758268825 is a wasteful number, since it uses less digits than its factorization.

18758268825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462865 (or 462860 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 60.

The spelling of 18758268825 in words is "eighteen billion, seven hundred fifty-eight million, two hundred sixty-eight thousand, eight hundred twenty-five".