13378399635327 has 16 divisors (see below), whose sum is σ = 18898269177600. Its totient is φ = 8389349188992.

The previous prime is 13378399635313. The next prime is 13378399635331. The reversal of 13378399635327 is 72353699387331.

It is not a de Polignac number, because 13378399635327 - 2⁷ = 13378399635199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13378399635397) 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 15 ways as a sum of consecutive naturals, for example, 77112163 + ... + 77285460.

It is an arithmetic number, because the mean of its divisors is an integer number (1181141823600).

Almost surely, 2^{13378399635327} is an apocalyptic number.

13378399635327 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13378399635327 is a deficient number, since it is larger than the sum of its proper divisors (5519869542273).

13378399635327 is a wasteful number, since it uses less digits than its factorization.

13378399635327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154399342.

The product of its digits is 462944160, while the sum is 69.

The spelling of 13378399635327 in words is "thirteen trillion, three hundred seventy-eight billion, three hundred ninety-nine million, six hundred thirty-five thousand, three hundred twenty-seven".