12652444878 has 16 divisors (see below), whose sum is σ = 25589215440. Its totient is φ = 4170094016.

The previous prime is 12652444801. The next prime is 12652444933. The reversal of 12652444878 is 87844425621.

It is a super-2 number, since 2×12652444878² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12652444878.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11846325 + ... + 11847392.

It is an arithmetic number, because the mean of its divisors is an integer number (1599325965).

Almost surely, 2^12652444878 is an apocalyptic number.

12652444878 is an abundant number, since it is smaller than the sum of its proper divisors (12936770562).

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

12652444878 is a wasteful number, since it uses less digits than its factorization.

12652444878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23693811.

The product of its digits is 3440640, while the sum is 51.

The spelling of 12652444878 in words is "twelve billion, six hundred fifty-two million, four hundred forty-four thousand, eight hundred seventy-eight".