19231343984 has 20 divisors (see below), whose sum is σ = 37366294416. Its totient is φ = 9588429312.

The previous prime is 19231343983. The next prime is 19231344001. The reversal of 19231343984 is 48934313291.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19231343983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1696844 + ... + 1708139.

Almost surely, 2^19231343984 is an apocalyptic number.

It is an amenable number.

19231343984 is a deficient number, since it is larger than the sum of its proper divisors (18134950432).

19231343984 is a wasteful number, since it uses less digits than its factorization.

19231343984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405344 (or 3405338 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The spelling of 19231343984 in words is "nineteen billion, two hundred thirty-one million, three hundred forty-three thousand, nine hundred eighty-four".