13950809893 has 2 divisors, whose sum is σ = 13950809894. Its totient is φ = 13950809892.

The previous prime is 13950809801. The next prime is 13950809911. The reversal of 13950809893 is 39890805931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9392129569 + 4558680324 = 96913^2 + 67518^2 .

It is a cyclic number.

It is not a de Polignac number, because 13950809893 - 2²⁵ = 13917255461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13950800893) 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 as a sum of consecutive naturals, namely, 6975404946 + 6975404947.

It is an arithmetic number, because the mean of its divisors is an integer number (6975404947).

Almost surely, 2^13950809893 is an apocalyptic number.

It is an amenable number.

13950809893 is a deficient number, since it is larger than the sum of its proper divisors (1).

13950809893 is an equidigital number, since it uses as much as digits as its factorization.

13950809893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 13950809893 in words is "thirteen billion, nine hundred fifty million, eight hundred nine thousand, eight hundred ninety-three".