26439929713 has 4 divisors (see below), whose sum is σ = 26440472128. Its totient is φ = 26439387300.

The previous prime is 26439929707. The next prime is 26439929717. The reversal of 26439929713 is 31792993462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26439929713 - 2²⁹ = 25903058801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26439929717) 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, 189981 + ... + 298282.

It is an arithmetic number, because the mean of its divisors is an integer number (6610118032).

Almost surely, 2^26439929713 is an apocalyptic number.

It is an amenable number.

26439929713 is a deficient number, since it is larger than the sum of its proper divisors (542415).

26439929713 is an equidigital number, since it uses as much as digits as its factorization.

26439929713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542414.

The product of its digits is 4408992, while the sum is 55.

The spelling of 26439929713 in words is "twenty-six billion, four hundred thirty-nine million, nine hundred twenty-nine thousand, seven hundred thirteen".