18504948000 has 576 divisors, whose sum is σ = 76957485696. Its totient is φ = 3843840000.

The previous prime is 18504947987. The next prime is 18504948029. The reversal of 18504948000 is 84940581.

It is a self number, because there is not a number n which added to its sum of digits gives 18504948000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6466570 + ... + 6469430.

It is an arithmetic number, because the mean of its divisors is an integer number (133606746).

Almost surely, 2^18504948000 is an apocalyptic number.

18504948000 is a gapful number since it is divisible by the number (10) 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 18504948000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38478742848).

18504948000 is an abundant number, since it is smaller than the sum of its proper divisors (58452537696).

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

18504948000 is a wasteful number, since it uses less digits than its factorization.

18504948000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 18504948000 in words is "eighteen billion, five hundred four million, nine hundred forty-eight thousand".