13844878377 has 16 divisors (see below), whose sum is σ = 20421642240. Its totient is φ = 8272653200.

The previous prime is 13844878363. The next prime is 13844878379. The reversal of 13844878377 is 77387844831.

It is a cyclic number.

It is not a de Polignac number, because 13844878377 - 2⁴ = 13844878361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13844878377.

It is not an unprimeable number, because it can be changed into a prime (13844878379) 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, 2952177 + ... + 2956862.

It is an arithmetic number, because the mean of its divisors is an integer number (1276352640).

Almost surely, 2^13844878377 is an apocalyptic number.

It is an amenable number.

13844878377 is a deficient number, since it is larger than the sum of its proper divisors (6576763863).

13844878377 is a wasteful number, since it uses less digits than its factorization.

13844878377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909124.

The product of its digits is 25288704, while the sum is 60.

The spelling of 13844878377 in words is "thirteen billion, eight hundred forty-four million, eight hundred seventy-eight thousand, three hundred seventy-seven".