13847790565 has 16 divisors (see below), whose sum is σ = 19001760768. Its totient is φ = 9490375296.

The previous prime is 13847790557. The next prime is 13847790569. The reversal of 13847790565 is 56509774831.

13847790565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13847790565 - 2³ = 13847790557 is a prime.

It is a super-2 number, since 2×13847790565² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13847790569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44712 + ... + 172321.

It is an arithmetic number, because the mean of its divisors is an integer number (1187610048).

Almost surely, 2^13847790565 is an apocalyptic number.

It is an amenable number.

13847790565 is a deficient number, since it is larger than the sum of its proper divisors (5153970203).

13847790565 is a wasteful number, since it uses less digits than its factorization.

13847790565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218868.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 13847790565 in words is "thirteen billion, eight hundred forty-seven million, seven hundred ninety thousand, five hundred sixty-five".