19323996433994 has 32 divisors (see below), whose sum is σ = 33163602850560. Its totient is φ = 8272527988608.

The previous prime is 19323996433991. The next prime is 19323996434063. The reversal of 19323996433994 is 49933469932391.

It is not an unprimeable number, because it can be changed into a prime (19323996433991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74291414 + ... + 74551070.

It is an arithmetic number, because the mean of its divisors is an integer number (1036362589080).

Almost surely, 2^{19323996433994} is an apocalyptic number.

19323996433994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19323996433994 is a deficient number, since it is larger than the sum of its proper divisors (13839606416566).

19323996433994 is a wasteful number, since it uses less digits than its factorization.

19323996433994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265542.

The product of its digits is 918330048, while the sum is 74.

The spelling of 19323996433994 in words is "nineteen trillion, three hundred twenty-three billion, nine hundred ninety-six million, four hundred thirty-three thousand, nine hundred ninety-four".