13887813276 has 18 divisors (see below), whose sum is σ = 35105305872. Its totient is φ = 4629271080.

The previous prime is 13887813227. The next prime is 13887813311. The reversal of 13887813276 is 67231878831.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192886260 + ... + 192886331.

Almost surely, 2^13887813276 is an apocalyptic number.

It is an amenable number.

13887813276 is an abundant number, since it is smaller than the sum of its proper divisors (21217492596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13887813276 is a wasteful number, since it uses less digits than its factorization.

13887813276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385772601 (or 385772596 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 13887813276 in words is "thirteen billion, eight hundred eighty-seven million, eight hundred thirteen thousand, two hundred seventy-six".