13038816929 has 4 divisors (see below), whose sum is σ = 13185320580. Its totient is φ = 12892313280.

The previous prime is 13038816919. The next prime is 13038816949. The reversal of 13038816929 is 92961883031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92961883031 = 132607 ⋅701033.

It can be written as a sum of positive squares in 2 ways, for example, as 6384010000 + 6654806929 = 79900^2 + 81577^2 .

It is a cyclic number.

It is not a de Polignac number, because 13038816929 - 2²⁴ = 13022039713 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 (13038816919) 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, 73251692 + ... + 73251869.

It is an arithmetic number, because the mean of its divisors is an integer number (3296330145).

Almost surely, 2^13038816929 is an apocalyptic number.

It is an amenable number.

13038816929 is a deficient number, since it is larger than the sum of its proper divisors (146503651).

13038816929 is an equidigital number, since it uses as much as digits as its factorization.

13038816929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146503650.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 13038816929 in words is "thirteen billion, thirty-eight million, eight hundred sixteen thousand, nine hundred twenty-nine".