12357727728 has 40 divisors (see below), whose sum is σ = 31982560128. Its totient is φ = 4111703232.

The previous prime is 12357727727. The next prime is 12357727729. The reversal of 12357727728 is 82772775321.

It is an interprime number because it is at equal distance from previous prime (12357727727) and next prime (12357727729).

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209076 + ... + 261587.

Almost surely, 2^12357727728 is an apocalyptic number.

It is an amenable number.

12357727728 is an abundant number, since it is smaller than the sum of its proper divisors (19624832400).

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

12357727728 is a wasteful number, since it uses less digits than its factorization.

12357727728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471221 (or 471215 counting only the distinct ones).

The product of its digits is 2304960, while the sum is 51.

The spelling of 12357727728 in words is "twelve billion, three hundred fifty-seven million, seven hundred twenty-seven thousand, seven hundred twenty-eight".