13876206687 has 32 divisors (see below), whose sum is σ = 23504232960. Its totient is φ = 7925843520.

The previous prime is 13876206677. The next prime is 13876206691. The reversal of 13876206687 is 78660267831.

13876206687 is a `hidden beast` number, since 1 + 3 + 8 + 7 + 620 + 6 + 6 + 8 + 7 = 666.

It is not a de Polignac number, because 13876206687 - 2⁶ = 13876206623 is a prime.

It is a super-2 number, since 2×13876206687² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13876206677) 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 31 ways as a sum of consecutive naturals, for example, 461908 + ... + 491030.

It is an arithmetic number, because the mean of its divisors is an integer number (734507280).

Almost surely, 2^13876206687 is an apocalyptic number.

13876206687 is a deficient number, since it is larger than the sum of its proper divisors (9628026273).

13876206687 is a wasteful number, since it uses less digits than its factorization.

13876206687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31660 (or 31654 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 13876206687 in words is "thirteen billion, eight hundred seventy-six million, two hundred six thousand, six hundred eighty-seven".