19923413746 has 32 divisors (see below), whose sum is σ = 31252999680. Its totient is φ = 9514713600.

The previous prime is 19923413701. The next prime is 19923413749. The reversal of 19923413746 is 64731432991.

It is a self number, because there is not a number n which added to its sum of digits gives 19923413746.

It is not an unprimeable number, because it can be changed into a prime (19923413749) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2274936 + ... + 2283676.

It is an arithmetic number, because the mean of its divisors is an integer number (976656240).

Almost surely, 2^19923413746 is an apocalyptic number.

19923413746 is a deficient number, since it is larger than the sum of its proper divisors (11329585934).

19923413746 is a wasteful number, since it uses less digits than its factorization.

19923413746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250.

The product of its digits is 979776, while the sum is 49.

The spelling of 19923413746 in words is "nineteen billion, nine hundred twenty-three million, four hundred thirteen thousand, seven hundred forty-six".