19793336505 has 64 divisors (see below), whose sum is σ = 33715180800. Its totient is φ = 9898004480.

The previous prime is 19793336473. The next prime is 19793336551. The reversal of 19793336505 is 50563339791.

It is not a de Polignac number, because 19793336505 - 2⁵ = 19793336473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4046101 + ... + 4050989.

It is an arithmetic number, because the mean of its divisors is an integer number (526799700).

Almost surely, 2^19793336505 is an apocalyptic number.

19793336505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19793336505 is a deficient number, since it is larger than the sum of its proper divisors (13921844295).

19793336505 is a wasteful number, since it uses less digits than its factorization.

19793336505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194.

The product of its (nonzero) digits is 2296350, while the sum is 51.

The spelling of 19793336505 in words is "nineteen billion, seven hundred ninety-three million, three hundred thirty-six thousand, five hundred five".