2639128281136 has 40 divisors (see below), whose sum is σ = 5163412672224. Its totient is φ = 1306689830400.

The previous prime is 2639128281133. The next prime is 2639128281149. The reversal of 2639128281136 is 6311828219362.

It is not an unprimeable number, because it can be changed into a prime (2639128281133) 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, 957085 + ... + 2488828.

Almost surely, 2^{2639128281136} is an apocalyptic number.

It is an amenable number.

2639128281136 is a deficient number, since it is larger than the sum of its proper divisors (2524284391088).

2639128281136 is a wasteful number, since it uses less digits than its factorization.

2639128281136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446389 (or 3446383 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The spelling of 2639128281136 in words is "two trillion, six hundred thirty-nine billion, one hundred twenty-eight million, two hundred eighty-one thousand, one hundred thirty-six".