13155893929 has 4 divisors (see below), whose sum is σ = 13156125700. Its totient is φ = 13155662160.

The previous prime is 13155893909. The next prime is 13155893953. The reversal of 13155893929 is 92939855131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92939855131 = 112589 ⋅825479.

It can be written as a sum of positive squares in 2 ways, for example, as 5750947225 + 7404946704 = 75835^2 + 86052^2 .

It is a cyclic number.

It is not a de Polignac number, because 13155893929 - 2⁵ = 13155893897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13155893929.

It is not an unprimeable number, because it can be changed into a prime (13155893909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33139 + ... + 165559.

It is an arithmetic number, because the mean of its divisors is an integer number (3289031425).

Almost surely, 2^13155893929 is an apocalyptic number.

It is an amenable number.

13155893929 is a deficient number, since it is larger than the sum of its proper divisors (231771).

13155893929 is an equidigital number, since it uses as much as digits as its factorization.

13155893929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231770.

The product of its digits is 2624400, while the sum is 55.

The spelling of 13155893929 in words is "thirteen billion, one hundred fifty-five million, eight hundred ninety-three thousand, nine hundred twenty-nine".