18899496000 has 1008 divisors, whose sum is σ = 85970132352. Its totient is φ = 3919104000.

The previous prime is 18899495977. The next prime is 18899496073. The reversal of 18899496000 is 69499881.

It is a tau number, because it is divible by the number of its divisors (1008).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 38807757 + ... + 38808243.

Almost surely, 2^18899496000 is an apocalyptic number.

18899496000 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 18899496000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42985066176).

18899496000 is an abundant number, since it is smaller than the sum of its proper divisors (67070636352).

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

18899496000 is a wasteful number, since it uses less digits than its factorization.

18899496000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 18899496000 in words is "eighteen billion, eight hundred ninety-nine million, four hundred ninety-six thousand".