18953988048 has 240 divisors, whose sum is σ = 55546373376. Its totient is φ = 6029337600.

The previous prime is 18953988037. The next prime is 18953988077. The reversal of 18953988048 is 84088935981.

It is a happy number.

18953988048 is a `hidden beast` number, since 18 + 9 + 539 + 8 + 80 + 4 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51645561 + ... + 51645927.

Almost surely, 2^18953988048 is an apocalyptic number.

18953988048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18953988048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27773186688).

18953988048 is an abundant number, since it is smaller than the sum of its proper divisors (36592385328).

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

18953988048 is a wasteful number, since it uses less digits than its factorization.

18953988048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 63.

It can be divided in two parts, 18953 and 988048, that added together give a palindrome (1007001).

The spelling of 18953988048 in words is "eighteen billion, nine hundred fifty-three million, nine hundred eighty-eight thousand, forty-eight".