13887113415 has 32 divisors (see below), whose sum is σ = 25403728896. Its totient is φ = 6345857280.

The previous prime is 13887113413. The next prime is 13887113441. The reversal of 13887113415 is 51431178831.

It is not a de Polignac number, because 13887113415 - 2¹ = 13887113413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887113413) 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, 251350 + ... + 301580.

It is an arithmetic number, because the mean of its divisors is an integer number (793866528).

Almost surely, 2^13887113415 is an apocalyptic number.

13887113415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13887113415 is a deficient number, since it is larger than the sum of its proper divisors (11516615481).

13887113415 is a wasteful number, since it uses less digits than its factorization.

13887113415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52879.

The product of its digits is 80640, while the sum is 42.

The spelling of 13887113415 in words is "thirteen billion, eight hundred eighty-seven million, one hundred thirteen thousand, four hundred fifteen".