13949717078335 has 4 divisors (see below), whose sum is σ = 16739660494008. Its totient is φ = 11159773662664.

The previous prime is 13949717078329. The next prime is 13949717078359. The reversal of 13949717078335 is 53387071794931.

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 13949717078335 - 2³ = 13949717078327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394971707829 + ... + 1394971707838.

It is an arithmetic number, because the mean of its divisors is an integer number (4184915123502).

Almost surely, 2^{13949717078335} is an apocalyptic number.

13949717078335 is a deficient number, since it is larger than the sum of its proper divisors (2789943415673).

13949717078335 is an equidigital number, since it uses as much as digits as its factorization.

13949717078335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789943415672.

The product of its (nonzero) digits is 120022560, while the sum is 67.

The spelling of 13949717078335 in words is "thirteen trillion, nine hundred forty-nine billion, seven hundred seventeen million, seventy-eight thousand, three hundred thirty-five".