19344222516 has 12 divisors (see below), whose sum is σ = 45136519232. Its totient is φ = 6448074168.

The previous prime is 19344222511. The next prime is 19344222517. The reversal of 19344222516 is 61522244391.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19344222511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806009260 + ... + 806009283.

Almost surely, 2^19344222516 is an apocalyptic number.

It is an amenable number.

19344222516 is an abundant number, since it is smaller than the sum of its proper divisors (25792296716).

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

19344222516 is a wasteful number, since it uses less digits than its factorization.

19344222516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612018550 (or 1612018548 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

It can be divided in two parts, 19344 and 222516, that added together give a triangular number (241860 = T₆₉₅).

The spelling of 19344222516 in words is "nineteen billion, three hundred forty-four million, two hundred twenty-two thousand, five hundred sixteen".