19934884244 has 24 divisors (see below), whose sum is σ = 38069312736. Its totient is φ = 9058500000.

The previous prime is 19934884243. The next prime is 19934884247. The reversal of 19934884244 is 44248843991.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19934884244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19934884243) 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, 76619 + ... + 213869.

It is an arithmetic number, because the mean of its divisors is an integer number (1586221364).

Almost surely, 2^19934884244 is an apocalyptic number.

It is an amenable number.

19934884244 is a deficient number, since it is larger than the sum of its proper divisors (18134428492).

19934884244 is a wasteful number, since it uses less digits than its factorization.

19934884244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140567 (or 140565 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 56.

The spelling of 19934884244 in words is "nineteen billion, nine hundred thirty-four million, eight hundred eighty-four thousand, two hundred forty-four".