13887810838 has 32 divisors (see below), whose sum is σ = 23480773632. Its totient is φ = 6103231200.

The previous prime is 13887810829. The next prime is 13887810877. The reversal of 13887810838 is 83801878831.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 756820 + ... + 774952.

It is an arithmetic number, because the mean of its divisors is an integer number (733774176).

Almost surely, 2^13887810838 is an apocalyptic number.

13887810838 is a deficient number, since it is larger than the sum of its proper divisors (9592962794).

13887810838 is a wasteful number, since it uses less digits than its factorization.

13887810838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19300.

The product of its (nonzero) digits is 2064384, while the sum is 55.

The spelling of 13887810838 in words is "thirteen billion, eight hundred eighty-seven million, eight hundred ten thousand, eight hundred thirty-eight".