13326839393961 has 4 divisors (see below), whose sum is σ = 17769119191952. Its totient is φ = 8884559595972.

The previous prime is 13326839393911. The next prime is 13326839393981. The reversal of 13326839393961 is 16939393862331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13326839393961 - 2¹⁸ = 13326839131817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13326839393892 and 13326839393901.

It is not an unprimeable number, because it can be changed into a prime (13326839393911) 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, 2221139898991 + ... + 2221139898996.

It is an arithmetic number, because the mean of its divisors is an integer number (4442279797988).

Almost surely, 2^{13326839393961} is an apocalyptic number.

It is an amenable number.

13326839393961 is a deficient number, since it is larger than the sum of its proper divisors (4442279797991).

13326839393961 is an equidigital number, since it uses as much as digits as its factorization.

13326839393961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442279797990.

The product of its digits is 102036672, while the sum is 66.

The spelling of 13326839393961 in words is "thirteen trillion, three hundred twenty-six billion, eight hundred thirty-nine million, three hundred ninety-three thousand, nine hundred sixty-one".