12645365952 has 56 divisors (see below), whose sum is σ = 35425629936. Its totient is φ = 3967172608.

The previous prime is 12645365951. The next prime is 12645365989. The reversal of 12645365952 is 25956354621.

It is a happy number.

12645365952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (12645365951) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1933833 + ... + 1940360.

Almost surely, 2^12645365952 is an apocalyptic number.

12645365952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12645365952 is an abundant number, since it is smaller than the sum of its proper divisors (22780263984).

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

12645365952 is a wasteful number, since it uses less digits than its factorization.

12645365952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874225 (or 3874215 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 48.

The spelling of 12645365952 in words is "twelve billion, six hundred forty-five million, three hundred sixty-five thousand, nine hundred fifty-two".