19929483993 has 8 divisors (see below), whose sum is σ = 26605413856. Its totient is φ = 13269938400.

The previous prime is 19929483991. The next prime is 19929484007. The reversal of 19929483993 is 39938492991.

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

It is not a de Polignac number, because 19929483993 - 2¹ = 19929483991 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19929483991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4093228 + ... + 4098093.

It is an arithmetic number, because the mean of its divisors is an integer number (3325676732).

Almost surely, 2^19929483993 is an apocalyptic number.

It is an amenable number.

19929483993 is a deficient number, since it is larger than the sum of its proper divisors (6675929863).

19929483993 is an equidigital number, since it uses as much as digits as its factorization.

19929483993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192135.

The product of its digits is 34012224, while the sum is 66.

The spelling of 19929483993 in words is "nineteen billion, nine hundred twenty-nine million, four hundred eighty-three thousand, nine hundred ninety-three".