13887750005 has 8 divisors (see below), whose sum is σ = 16666792632. Its totient is φ = 11109204928.

The previous prime is 13887749917. The next prime is 13887750031. The reversal of 13887750005 is 50005778831.

It can be written as a sum of positive squares in 4 ways, for example, as 74684164 + 13813065841 = 8642^2 + 117529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13887750005 - 2²⁰ = 13886701429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59942 + ... + 177111.

It is an arithmetic number, because the mean of its divisors is an integer number (2083349079).

Almost surely, 2^13887750005 is an apocalyptic number.

It is an amenable number.

13887750005 is a deficient number, since it is larger than the sum of its proper divisors (2779042627).

13887750005 is a wasteful number, since it uses less digits than its factorization.

13887750005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248775.

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 13887750005 in words is "thirteen billion, eight hundred eighty-seven million, seven hundred fifty thousand, five".