6538707722 has 16 divisors (see below), whose sum is σ = 10393132680. Its totient is φ = 3074631168.

The previous prime is 6538707719. The next prime is 6538707793. The reversal of 6538707722 is 2277078356.

It can be written as a sum of positive squares in 4 ways, for example, as 5538187561 + 1000520161 = 74419^2 + 31631^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30773 + ... + 118424.

Almost surely, 2^6538707722 is an apocalyptic number.

6538707722 is a deficient number, since it is larger than the sum of its proper divisors (3854424958).

6538707722 is a wasteful number, since it uses less digits than its factorization.

6538707722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150505.

The product of its (nonzero) digits is 987840, while the sum is 47.

The square root of 6538707722 is about 80862.2762603181. The cubic root of 6538707722 is about 1869.9527876591.

The spelling of 6538707722 in words is "six billion, five hundred thirty-eight million, seven hundred seven thousand, seven hundred twenty-two".