18953153804484 has 27 divisors (see below), whose sum is σ = 47909427034287. Its totient is φ = 6317709227784.

The previous prime is 18953153804467. The next prime is 18953153804513. The reversal of 18953153804484 is 48440835135981.

It is a happy number.

The square root of 18953153804484 is 4353522.

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

18953153804484 is a `hidden beast` number, since 1 + 8 + 9 + 53 + 1 + 538 + 0 + 4 + 48 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25758339 + ... + 26483925.

Almost surely, 2^{18953153804484} is an apocalyptic number.

18953153804484 is the 4353522-nd square number.

It is an amenable number.

18953153804484 is an abundant number, since it is smaller than the sum of its proper divisors (28956273229803).

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

18953153804484 is an frugal number, since it uses more digits than its factorization.

18953153804484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451184 (or 725592 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 63.

The spelling of 18953153804484 in words is "eighteen trillion, nine hundred fifty-three billion, one hundred fifty-three million, eight hundred four thousand, four hundred eighty-four".