18700950144 has 128 divisors (see below), whose sum is σ = 50574015360. Its totient is φ = 6121472000.

The previous prime is 18700950139. The next prime is 18700950187. The reversal of 18700950144 is 44105900781.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7659964 + ... + 7662404.

It is an arithmetic number, because the mean of its divisors is an integer number (395109495).

Almost surely, 2^18700950144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18700950144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25287007680).

18700950144 is an abundant number, since it is smaller than the sum of its proper divisors (31873065216).

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

18700950144 is a wasteful number, since it uses less digits than its factorization.

18700950144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810 (or 2798 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 18700950144 in words is "eighteen billion, seven hundred million, nine hundred fifty thousand, one hundred forty-four".