13949690017 has 4 divisors (see below), whose sum is σ = 14770260036. Its totient is φ = 13129120000.

The previous prime is 13949690011. The next prime is 13949690021. The reversal of 13949690017 is 71009694931.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9444729856 + 4504960161 = 97184^2 + 67119^2 .

It is a cyclic number.

It is not a de Polignac number, because 13949690017 - 2⁷ = 13949689889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13949690011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410284984 + ... + 410285017.

It is an arithmetic number, because the mean of its divisors is an integer number (3692565009).

Almost surely, 2^13949690017 is an apocalyptic number.

13949690017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13949690017 is a deficient number, since it is larger than the sum of its proper divisors (820570019).

13949690017 is an equidigital number, since it uses as much as digits as its factorization.

13949690017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820570018.

The product of its (nonzero) digits is 367416, while the sum is 49.

The spelling of 13949690017 in words is "thirteen billion, nine hundred forty-nine million, six hundred ninety thousand, seventeen".