2638268043339 has 8 divisors (see below), whose sum is σ = 3517698634560. Its totient is φ = 1758841407176.

The previous prime is 2638268043319. The next prime is 2638268043379. The reversal of 2638268043339 is 9333408628362.

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 2638268043339 - 2²⁰ = 2638266994763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2638268043319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374952 + ... + 2677130.

It is an arithmetic number, because the mean of its divisors is an integer number (439712329320).

Almost surely, 2^{2638268043339} is an apocalyptic number.

2638268043339 is a deficient number, since it is larger than the sum of its proper divisors (879430591221).

2638268043339 is a wasteful number, since it uses less digits than its factorization.

2638268043339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977529.

The product of its (nonzero) digits is 26873856, while the sum is 57.

The spelling of 2638268043339 in words is "two trillion, six hundred thirty-eight billion, two hundred sixty-eight million, forty-three thousand, three hundred thirty-nine".