2063639911 has 4 divisors (see below), whose sum is σ = 2185030512. Its totient is φ = 1942249312.

The previous prime is 2063639867. The next prime is 2063639927. The reversal of 2063639911 is 1199363602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1199363602 = 2 ⋅599681801.

It is a cyclic number.

It is not a de Polignac number, because 2063639911 - 2²⁵ = 2030085479 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2063639311) 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, 60695275 + ... + 60695308.

It is an arithmetic number, because the mean of its divisors is an integer number (546257628).

Almost surely, 2^2063639911 is an apocalyptic number.

2063639911 is a deficient number, since it is larger than the sum of its proper divisors (121390601).

2063639911 is a wasteful number, since it uses less digits than its factorization.

2063639911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121390600.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 2063639911 is about 45427.3035849587. The cubic root of 2063639911 is about 1273.1453050957.

The spelling of 2063639911 in words is "two billion, sixty-three million, six hundred thirty-nine thousand, nine hundred eleven".