13018129236 has 72 divisors (see below), whose sum is σ = 39820173120. Its totient is φ = 3500672256.

The previous prime is 13018129207. The next prime is 13018129277. The reversal of 13018129236 is 63292181031.

13018129236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13018129236.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1515106 + ... + 1523673.

It is an arithmetic number, because the mean of its divisors is an integer number (553057960).

Almost surely, 2^13018129236 is an apocalyptic number.

It is an amenable number.

13018129236 is an abundant number, since it is smaller than the sum of its proper divisors (26802043884).

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

13018129236 is a wasteful number, since it uses less digits than its factorization.

13018129236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038813 (or 3038808 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 13018129236 in words is "thirteen billion, eighteen million, one hundred twenty-nine thousand, two hundred thirty-six".