19122419736 has 480 divisors, whose sum is σ = 67907862000. Its totient is φ = 4992938496.

The previous prime is 19122419711. The next prime is 19122419773. The reversal of 19122419736 is 63791422191.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 19122419691 and 19122419700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 17494806 + ... + 17495898.

Almost surely, 2^19122419736 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 19122419736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33953931000).

19122419736 is an abundant number, since it is smaller than the sum of its proper divisors (48785442264).

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

19122419736 is a wasteful number, since it uses less digits than its factorization.

19122419736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1153 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The spelling of 19122419736 in words is "nineteen billion, one hundred twenty-two million, four hundred nineteen thousand, seven hundred thirty-six".