12764446722 has 40 divisors (see below), whose sum is σ = 28612386000. Its totient is φ = 4253243256.

The previous prime is 12764446699. The next prime is 12764446727. The reversal of 12764446722 is 22764446721.

12764446722 is a `hidden beast` number, since 127 + 6 + 44 + 467 + 22 = 666.

It is a super-2 number, since 2×12764446722² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12764446727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 476029 + ... + 502127.

It is an arithmetic number, because the mean of its divisors is an integer number (715309650).

Almost surely, 2^12764446722 is an apocalyptic number.

12764446722 is an abundant number, since it is smaller than the sum of its proper divisors (15847939278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12764446722 is a wasteful number, since it uses less digits than its factorization.

12764446722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29132 (or 29123 counting only the distinct ones).

The product of its digits is 903168, while the sum is 45.

Subtracting 12764446722 from its reverse (22764446721), we obtain a palindrome (9999999999).

The spelling of 12764446722 in words is "twelve billion, seven hundred sixty-four million, four hundred forty-six thousand, seven hundred twenty-two".