13526036643 has 8 divisors (see below), whose sum is σ = 20611103488. Its totient is φ = 7729163784.

The previous prime is 13526036639. The next prime is 13526036717. The reversal of 13526036643 is 34663062531.

13526036643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13526036643 - 2² = 13526036639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13526036603) 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, 322048471 + ... + 322048512.

It is an arithmetic number, because the mean of its divisors is an integer number (2576387936).

Almost surely, 2^13526036643 is an apocalyptic number.

13526036643 is a deficient number, since it is larger than the sum of its proper divisors (7085066845).

13526036643 is an equidigital number, since it uses as much as digits as its factorization.

13526036643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644096993.

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 13526036643 in words is "thirteen billion, five hundred twenty-six million, thirty-six thousand, six hundred forty-three".