13726347794 has 4 divisors (see below), whose sum is σ = 20589521694. Its totient is φ = 6863173896.

The previous prime is 13726347793. The next prime is 13726347827. The reversal of 13726347794 is 49774362731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13711239025 + 15108769 = 117095^2 + 3887^2 .

It is not an unprimeable number, because it can be changed into a prime (13726347793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3431586947 + ... + 3431586950.

Almost surely, 2^13726347794 is an apocalyptic number.

13726347794 is a deficient number, since it is larger than the sum of its proper divisors (6863173900).

13726347794 is an equidigital number, since it uses as much as digits as its factorization.

13726347794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6863173899.

The product of its digits is 5334336, while the sum is 53.

The spelling of 13726347794 in words is "thirteen billion, seven hundred twenty-six million, three hundred forty-seven thousand, seven hundred ninety-four".