13823786487 has 64 divisors (see below), whose sum is σ = 23076956160. Its totient is φ = 7179964416.

The previous prime is 13823786479. The next prime is 13823786489. The reversal of 13823786487 is 78468732831.

It is a happy number.

It is not a de Polignac number, because 13823786487 - 2³ = 13823786479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13823786489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1805814 + ... + 1813452.

It is an arithmetic number, because the mean of its divisors is an integer number (360577440).

Almost surely, 2^13823786487 is an apocalyptic number.

13823786487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13823786487 is a deficient number, since it is larger than the sum of its proper divisors (9253169673).

13823786487 is a wasteful number, since it uses less digits than its factorization.

13823786487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7840.

The product of its digits is 10838016, while the sum is 57.

The spelling of 13823786487 in words is "thirteen billion, eight hundred twenty-three million, seven hundred eighty-six thousand, four hundred eighty-seven".