13865775377 has 16 divisors (see below), whose sum is σ = 14597603328. Its totient is φ = 13145101200.

The previous prime is 13865775367. The next prime is 13865775403. The reversal of 13865775377 is 77357756831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13865775377 - 2¹⁰ = 13865774353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13865775317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1603688 + ... + 1612310.

It is an arithmetic number, because the mean of its divisors is an integer number (912350208).

Almost surely, 2^13865775377 is an apocalyptic number.

It is an amenable number.

13865775377 is a deficient number, since it is larger than the sum of its proper divisors (731827951).

13865775377 is a wasteful number, since it uses less digits than its factorization.

13865775377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9260.

The product of its digits is 25930800, while the sum is 59.

The spelling of 13865775377 in words is "thirteen billion, eight hundred sixty-five million, seven hundred seventy-five thousand, three hundred seventy-seven".