13727692381 has 24 divisors (see below), whose sum is σ = 15291122784. Its totient is φ = 12309485760.

The previous prime is 13727692373. The next prime is 13727692411. The reversal of 13727692381 is 18329672731.

It is not a de Polignac number, because 13727692381 - 2³ = 13727692373 is a prime.

It is a super-2 number, since 2×13727692381² (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 (13727692081) 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, 5069830 + ... + 5072536.

It is an arithmetic number, because the mean of its divisors is an integer number (637130116).

Almost surely, 2^13727692381 is an apocalyptic number.

It is an amenable number.

13727692381 is a deficient number, since it is larger than the sum of its proper divisors (1563430403).

13727692381 is a wasteful number, since it uses less digits than its factorization.

13727692381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581 (or 3568 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The spelling of 13727692381 in words is "thirteen billion, seven hundred twenty-seven million, six hundred ninety-two thousand, three hundred eighty-one".