19431534352 has 20 divisors (see below), whose sum is σ = 37652121360. Its totient is φ = 9714857888.

The previous prime is 19431534341. The next prime is 19431534373. The reversal of 19431534352 is 25343513491.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140163 + ... + 241885.

It is an arithmetic number, because the mean of its divisors is an integer number (1882606068).

Almost surely, 2^19431534352 is an apocalyptic number.

It is an amenable number.

19431534352 is a deficient number, since it is larger than the sum of its proper divisors (18220587008).

19431534352 is a wasteful number, since it uses less digits than its factorization.

19431534352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113670 (or 113664 counting only the distinct ones).

The product of its digits is 194400, while the sum is 40.

The spelling of 19431534352 in words is "nineteen billion, four hundred thirty-one million, five hundred thirty-four thousand, three hundred fifty-two".