13047372605 has 8 divisors (see below), whose sum is σ = 15687610200. Its totient is φ = 10417389376.

The previous prime is 13047372557. The next prime is 13047372623. The reversal of 13047372605 is 50627374031.

It can be written as a sum of positive squares in 4 ways, for example, as 5782537849 + 7264834756 = 76043^2 + 85234^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13047372605 - 2¹⁶ = 13047307069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2560790 + ... + 2565879.

It is an arithmetic number, because the mean of its divisors is an integer number (1960951275).

Almost surely, 2^13047372605 is an apocalyptic number.

It is an amenable number.

13047372605 is a deficient number, since it is larger than the sum of its proper divisors (2640237595).

13047372605 is an equidigital number, since it uses as much as digits as its factorization.

13047372605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127183.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 13047372605 in words is "thirteen billion, forty-seven million, three hundred seventy-two thousand, six hundred five".