13834837381 has 4 divisors (see below), whose sum is σ = 13836019564. Its totient is φ = 13833655200.

The previous prime is 13834837361. The next prime is 13834837399. The reversal of 13834837381 is 18373843831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6513297025 + 7321540356 = 80705^2 + 85566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13834837381 is a prime.

It is a super-2 number, since 2×13834837381² (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 (13834837361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573360 + ... + 597001.

It is an arithmetic number, because the mean of its divisors is an integer number (3459004891).

Almost surely, 2^13834837381 is an apocalyptic number.

It is an amenable number.

13834837381 is a deficient number, since it is larger than the sum of its proper divisors (1182183).

13834837381 is a wasteful number, since it uses less digits than its factorization.

13834837381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182182.

The product of its digits is 1161216, while the sum is 49.

The spelling of 13834837381 in words is "thirteen billion, eight hundred thirty-four million, eight hundred thirty-seven thousand, three hundred eighty-one".