3877889586913 has 4 divisors (see below), whose sum is σ = 3880174732740. Its totient is φ = 3875604441088.

The previous prime is 3877889586847. The next prime is 3877889586931. The reversal of 3877889586913 is 3196859887783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3435269488704 + 442620098209 = 1853448^2 + 665297^2 .

It is a cyclic number.

It is not a de Polignac number, because 3877889586913 - 2³³ = 3869299652321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3877889586313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142570368 + ... + 1142573761.

It is an arithmetic number, because the mean of its divisors is an integer number (970043683185).

Almost surely, 2^{3877889586913} is an apocalyptic number.

It is an amenable number.

3877889586913 is a deficient number, since it is larger than the sum of its proper divisors (2285145827).

3877889586913 is a wasteful number, since it uses less digits than its factorization.

3877889586913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285145826.

The product of its digits is 4389396480, while the sum is 82.

The spelling of 3877889586913 in words is "three trillion, eight hundred seventy-seven billion, eight hundred eighty-nine million, five hundred eighty-six thousand, nine hundred thirteen".