19140098508 has 72 divisors (see below), whose sum is σ = 50591923200. Its totient is φ = 6089773536.

The previous prime is 19140098507. The next prime is 19140098521. The reversal of 19140098508 is 80589004191.

19140098508 is a `hidden beast` number, since 19 + 1 + 40 + 0 + 98 + 508 = 666.

It is not an unprimeable number, because it can be changed into a prime (19140098503) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 372483 + ... + 420741.

It is an arithmetic number, because the mean of its divisors is an integer number (702665600).

Almost surely, 2^19140098508 is an apocalyptic number.

19140098508 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 19140098508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25295961600).

19140098508 is an abundant number, since it is smaller than the sum of its proper divisors (31451824692).

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

19140098508 is a wasteful number, since it uses less digits than its factorization.

19140098508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48771 (or 48766 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 19140098508 in words is "nineteen billion, one hundred forty million, ninety-eight thousand, five hundred eight".