2639806222 has 4 divisors (see below), whose sum is σ = 3959709336. Its totient is φ = 1319903110.

The previous prime is 2639806219. The next prime is 2639806289. The reversal of 2639806222 is 2226089362.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 659951554 + ... + 659951557.

It is an arithmetic number, because the mean of its divisors is an integer number (989927334).

Almost surely, 2^2639806222 is an apocalyptic number.

2639806222 is a deficient number, since it is larger than the sum of its proper divisors (1319903114).

2639806222 is a wasteful number, since it uses less digits than its factorization.

2639806222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319903113.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 2639806222 is about 51379.0445804513. The cubic root of 2639806222 is about 1382.0508298215.

The spelling of 2639806222 in words is "two billion, six hundred thirty-nine million, eight hundred six thousand, two hundred twenty-two".