19239782122 has 16 divisors (see below), whose sum is σ = 31494549600. Its totient is φ = 8742225040.

The previous prime is 19239782119. The next prime is 19239782129. The reversal of 19239782122 is 22128793291.

It is a happy number.

It is a super-2 number, since 2×19239782122² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19239782129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93097 + ... + 217132.

It is an arithmetic number, because the mean of its divisors is an integer number (1968409350).

Almost surely, 2^19239782122 is an apocalyptic number.

19239782122 is a deficient number, since it is larger than the sum of its proper divisors (12254767478).

19239782122 is a wasteful number, since it uses less digits than its factorization.

19239782122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313061.

The product of its digits is 217728, while the sum is 46.

The spelling of 19239782122 in words is "nineteen billion, two hundred thirty-nine million, seven hundred eighty-two thousand, one hundred twenty-two".