12357727722 has 24 divisors (see below), whose sum is σ = 27280268964. Its totient is φ = 4041520704.

The previous prime is 12357727709. The next prime is 12357727727. The reversal of 12357727722 is 22772775321.

12357727722 is a `hidden beast` number, since 1 + 2 + 3 + 577 + 2 + 7 + 72 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11841574761 + 516152961 = 108819^2 + 22719^2 .

It is not an unprimeable number, because it can be changed into a prime (12357727727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6475843 + ... + 6477750.

Almost surely, 2^12357727722 is an apocalyptic number.

12357727722 is an abundant number, since it is smaller than the sum of its proper divisors (14922541242).

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

12357727722 is a wasteful number, since it uses less digits than its factorization.

12357727722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12953654 (or 12953651 counting only the distinct ones).

The product of its digits is 576240, while the sum is 45.

The spelling of 12357727722 in words is "twelve billion, three hundred fifty-seven million, seven hundred twenty-seven thousand, seven hundred twenty-two".