13886997550 has 24 divisors (see below), whose sum is σ = 25847899200. Its totient is φ = 5550910080.

The previous prime is 13886997547. The next prime is 13886997559. The reversal of 13886997550 is 5579968831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13886997559) 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 11 ways as a sum of consecutive naturals, for example, 24555 + ... + 168454.

It is an arithmetic number, because the mean of its divisors is an integer number (1076995800).

Almost surely, 2^13886997550 is an apocalyptic number.

13886997550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13886997550 is a deficient number, since it is larger than the sum of its proper divisors (11960901650).

13886997550 is a wasteful number, since it uses less digits than its factorization.

13886997550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194460 (or 194455 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 13886997550 in words is "thirteen billion, eight hundred eighty-six million, nine hundred ninety-seven thousand, five hundred fifty".