6139836889 has 4 divisors (see below), whose sum is σ = 6147408400. Its totient is φ = 6132265380.

The previous prime is 6139836881. The next prime is 6139836929. The reversal of 6139836889 is 9886389316.

6139836889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6139836889 - 2³ = 6139836881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6139836881) 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, 3784539 + ... + 3786160.

It is an arithmetic number, because the mean of its divisors is an integer number (1536852100).

Almost surely, 2^6139836889 is an apocalyptic number.

It is an amenable number.

6139836889 is a deficient number, since it is larger than the sum of its proper divisors (7571511).

6139836889 is an equidigital number, since it uses as much as digits as its factorization.

6139836889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571510.

The product of its digits is 13436928, while the sum is 61.

The square root of 6139836889 is about 78357.1112854475. Note that the first 3 decimals coincide. The cubic root of 6139836889 is about 1831.1290164510.

The spelling of 6139836889 in words is "six billion, one hundred thirty-nine million, eight hundred thirty-six thousand, eight hundred eighty-nine".