12652879005 has 48 divisors (see below), whose sum is σ = 24194819376. Its totient is φ = 6077168640.

The previous prime is 12652878971. The next prime is 12652879009. The reversal of 12652879005 is 50097825621.

It can be written as a sum of positive squares in 8 ways, for example, as 4137834276 + 8515044729 = 64326^2 + 92277^2 .

It is not a de Polignac number, because 12652879005 - 2¹² = 12652874909 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12652879009) 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 47 ways as a sum of consecutive naturals, for example, 239782 + ... + 287751.

It is an arithmetic number, because the mean of its divisors is an integer number (504058737).

Almost surely, 2^12652879005 is an apocalyptic number.

12652879005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12652879005 is a deficient number, since it is larger than the sum of its proper divisors (11541940371).

12652879005 is a wasteful number, since it uses less digits than its factorization.

12652879005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527598 (or 527595 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 12652879005 in words is "twelve billion, six hundred fifty-two million, eight hundred seventy-nine thousand, five".