19431404696 has 16 divisors (see below), whose sum is σ = 39746055240. Its totient is φ = 8832456640.

The previous prime is 19431404693. The next prime is 19431404767. The reversal of 19431404696 is 69640413491.

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 19431404696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19431404693) 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, 110405621 + ... + 110405796.

Almost surely, 2^19431404696 is an apocalyptic number.

It is an amenable number.

19431404696 is an abundant number, since it is smaller than the sum of its proper divisors (20314650544).

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

19431404696 is a wasteful number, since it uses less digits than its factorization.

19431404696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220811434 (or 220811430 counting only the distinct ones).

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

The spelling of 19431404696 in words is "nineteen billion, four hundred thirty-one million, four hundred four thousand, six hundred ninety-six".