18257012548 has 12 divisors (see below), whose sum is σ = 32193664272. Its totient is φ = 9058822760.

The previous prime is 18257012531. The next prime is 18257012561. The reversal of 18257012548 is 84521075281.

It is a super-4 number, since 4×18257012548⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17420290 + ... + 17421337.

It is an arithmetic number, because the mean of its divisors is an integer number (2682805356).

Almost surely, 2^18257012548 is an apocalyptic number.

It is an amenable number.

18257012548 is a deficient number, since it is larger than the sum of its proper divisors (13936651724).

18257012548 is a wasteful number, since it uses less digits than its factorization.

18257012548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34841762 (or 34841760 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 43.

The spelling of 18257012548 in words is "eighteen billion, two hundred fifty-seven million, twelve thousand, five hundred forty-eight".