13677229781 has 16 divisors (see below), whose sum is σ = 14477149440. Its totient is φ = 12885465600.

The previous prime is 13677229763. The next prime is 13677229829. The reversal of 13677229781 is 18792277631.

It is not a de Polignac number, because 13677229781 - 2¹⁰ = 13677228757 is a prime.

It is a super-2 number, since 2×13677229781² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13677229981) 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, 4881581 + ... + 4884381.

It is an arithmetic number, because the mean of its divisors is an integer number (904821840).

Almost surely, 2^13677229781 is an apocalyptic number.

It is an amenable number.

13677229781 is a deficient number, since it is larger than the sum of its proper divisors (799919659).

13677229781 is a wasteful number, since it uses less digits than its factorization.

13677229781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156.

The product of its digits is 1778112, while the sum is 53.

The spelling of 13677229781 in words is "thirteen billion, six hundred seventy-seven million, two hundred twenty-nine thousand, seven hundred eighty-one".