19244180718 has 120 divisors (see below), whose sum is σ = 50650574832. Its totient is φ = 5444724096.

The previous prime is 19244180699. The next prime is 19244180773. The reversal of 19244180718 is 81708144291.

19244180718 is a `hidden beast` number, since 192 + 441 + 8 + 0 + 7 + 18 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 805846 + ... + 829382.

Almost surely, 2^19244180718 is an apocalyptic number.

19244180718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19244180718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25325287416).

19244180718 is an abundant number, since it is smaller than the sum of its proper divisors (31406394114).

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

19244180718 is a wasteful number, since it uses less digits than its factorization.

19244180718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23668 (or 23652 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 19244180718 in words is "nineteen billion, two hundred forty-four million, one hundred eighty thousand, seven hundred eighteen".