2639345063 has 8 divisors (see below), whose sum is σ = 2659785456. Its totient is φ = 2618956800.

The previous prime is 2639345041. The next prime is 2639345083. The reversal of 2639345063 is 3605439362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2639345063 is a prime.

It is a super-2 number, since 2×2639345063² = 13932284723164947938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2639345063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639345083) 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, 91853 + ... + 117113.

It is an arithmetic number, because the mean of its divisors is an integer number (332473182).

Almost surely, 2^2639345063 is an apocalyptic number.

2639345063 is a deficient number, since it is larger than the sum of its proper divisors (20440393).

2639345063 is a wasteful number, since it uses less digits than its factorization.

2639345063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26065.

The product of its (nonzero) digits is 349920, while the sum is 41.

The square root of 2639345063 is about 51374.5565722956. The cubic root of 2639345063 is about 1381.9703463514.

The spelling of 2639345063 in words is "two billion, six hundred thirty-nine million, three hundred forty-five thousand, sixty-three".