13192779393 has 32 divisors (see below), whose sum is σ = 19711641600. Its totient is φ = 8720406288.

The previous prime is 13192779377. The next prime is 13192779403. The reversal of 13192779393 is 39397729131.

It is not a de Polignac number, because 13192779393 - 2⁴ = 13192779377 is a prime.

It is a super-2 number, since 2×13192779393² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13192769393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1885780 + ... + 1892762.

It is an arithmetic number, because the mean of its divisors is an integer number (615988800).

Almost surely, 2^13192779393 is an apocalyptic number.

It is an amenable number.

13192779393 is a deficient number, since it is larger than the sum of its proper divisors (6518862207).

13192779393 is a wasteful number, since it uses less digits than its factorization.

13192779393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578 (or 7572 counting only the distinct ones).

The product of its digits is 1928934, while the sum is 54.

The spelling of 13192779393 in words is "thirteen billion, one hundred ninety-two million, seven hundred seventy-nine thousand, three hundred ninety-three".