13756381389 has 24 divisors (see below), whose sum is σ = 20944096992. Its totient is φ = 9020568240.

The previous prime is 13756381319. The next prime is 13756381393. The reversal of 13756381389 is 98318365731.

13756381389 is a `hidden beast` number, since 137 + 56 + 3 + 81 + 389 = 666.

It is not a de Polignac number, because 13756381389 - 2⁹ = 13756380877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13756381319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 449199 + ... + 478844.

It is an arithmetic number, because the mean of its divisors is an integer number (872670708).

Almost surely, 2^13756381389 is an apocalyptic number.

It is an amenable number.

13756381389 is a deficient number, since it is larger than the sum of its proper divisors (7187715603).

13756381389 is an frugal number, since it uses more digits than its factorization.

13756381389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928119 (or 928107 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 13756381389 in words is "thirteen billion, seven hundred fifty-six million, three hundred eighty-one thousand, three hundred eighty-nine".