19435932394 has 8 divisors (see below), whose sum is σ = 29181327840. Its totient is φ = 9708823116.

The previous prime is 19435932379. The next prime is 19435932421. The reversal of 19435932394 is 49323953491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4568884 + ... + 4573135.

It is an arithmetic number, because the mean of its divisors is an integer number (3647665980).

Almost surely, 2^19435932394 is an apocalyptic number.

19435932394 is a deficient number, since it is larger than the sum of its proper divisors (9745395446).

19435932394 is a wasteful number, since it uses less digits than its factorization.

19435932394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9143084.

The product of its digits is 3149280, while the sum is 52.

The spelling of 19435932394 in words is "nineteen billion, four hundred thirty-five million, nine hundred thirty-two thousand, three hundred ninety-four".