2641389139 has 8 divisors (see below), whose sum is σ = 2786128640. Its totient is φ = 2497221576.

The previous prime is 2641389077. The next prime is 2641389167. The reversal of 2641389139 is 9319831462.

It is a happy number.

2641389139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2641389139 - 2⁹ = 2641388627 is a prime.

It is a super-2 number, since 2×2641389139² = 13953873167254322642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2641389169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133479 + ... + 151984.

It is an arithmetic number, because the mean of its divisors is an integer number (348266080).

Almost surely, 2^2641389139 is an apocalyptic number.

2641389139 is a deficient number, since it is larger than the sum of its proper divisors (144739501).

2641389139 is a wasteful number, since it uses less digits than its factorization.

2641389139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285969.

The product of its digits is 279936, while the sum is 46.

The square root of 2641389139 is about 51394.4465774270. The cubic root of 2641389139 is about 1382.3270160826.

The spelling of 2641389139 in words is "two billion, six hundred forty-one million, three hundred eighty-nine thousand, one hundred thirty-nine".