12836613505 has 32 divisors (see below), whose sum is σ = 16052631840. Its totient is φ = 9842380800.

The previous prime is 12836613499. The next prime is 12836613511. The reversal of 12836613505 is 50531663821.

It is an interprime number because it is at equal distance from previous prime (12836613499) and next prime (12836613511).

It can be written as a sum of positive squares in 16 ways, for example, as 1084319041 + 11752294464 = 32929^2 + 108408^2 .

It is not a de Polignac number, because 12836613505 - 2³ = 12836613497 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 16105767 + ... + 16106563.

It is an arithmetic number, because the mean of its divisors is an integer number (501644745).

Almost surely, 2^12836613505 is an apocalyptic number.

It is an amenable number.

12836613505 is a deficient number, since it is larger than the sum of its proper divisors (3216018335).

12836613505 is a wasteful number, since it uses less digits than its factorization.

12836613505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 12836613505 in words is "twelve billion, eight hundred thirty-six million, six hundred thirteen thousand, five hundred five".