13436581603819 has 4 divisors (see below), whose sum is σ = 14658089022360. Its totient is φ = 12215074185280.

The previous prime is 13436581603813. The next prime is 13436581603877. The reversal of 13436581603819 is 91830618563431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13436581603819 - 2⁵ = 13436581603787 is a prime.

It is a super-2 number, since 2×13436581603819² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13436581603813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610753709254 + ... + 610753709275.

It is an arithmetic number, because the mean of its divisors is an integer number (3664522255590).

Almost surely, 2^{13436581603819} is an apocalyptic number.

13436581603819 is a deficient number, since it is larger than the sum of its proper divisors (1221507418541).

13436581603819 is a wasteful number, since it uses less digits than its factorization.

13436581603819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221507418540.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 13436581603819 in words is "thirteen trillion, four hundred thirty-six billion, five hundred eighty-one million, six hundred three thousand, eight hundred nineteen".