18148939524 has 27 divisors (see below), whose sum is σ = 45878529333. Its totient is φ = 6049377072.

The previous prime is 18148939511. The next prime is 18148939531. The reversal of 18148939524 is 42593984181.

It is a happy number.

The square root of 18148939524 is 134718.

It is a perfect power (a square), and thus also a powerful number.

18148939524 is a `hidden beast` number, since 1 + 8 + 1 + 4 + 89 + 39 + 524 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1926332100 + 16222607424 = 43890^2 + 127368^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 797082 + ... + 819534.

Almost surely, 2^18148939524 is an apocalyptic number.

18148939524 is the 134718-th square number.

It is an amenable number.

18148939524 is an abundant number, since it is smaller than the sum of its proper divisors (27729589809).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18148939524 is an frugal number, since it uses more digits than its factorization.

18148939524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44916 (or 22458 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 18148939524 in words is "eighteen billion, one hundred forty-eight million, nine hundred thirty-nine thousand, five hundred twenty-four".