13247635417 has 8 divisors (see below), whose sum is σ = 13387549896. Its totient is φ = 13107789312.

The previous prime is 13247635403. The next prime is 13247635421. The reversal of 13247635417 is 71453674231.

It can be written as a sum of positive squares in 4 ways, for example, as 681001216 + 12566634201 = 26096^2 + 112101^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13247635417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13247635447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435063 + ... + 464515.

It is an arithmetic number, because the mean of its divisors is an integer number (1673443737).

Almost surely, 2^13247635417 is an apocalyptic number.

It is an amenable number.

13247635417 is a deficient number, since it is larger than the sum of its proper divisors (139914479).

13247635417 is an equidigital number, since it uses as much as digits as its factorization.

13247635417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34187.

The product of its digits is 423360, while the sum is 43.

The spelling of 13247635417 in words is "thirteen billion, two hundred forty-seven million, six hundred thirty-five thousand, four hundred seventeen".