13933771493 has 2 divisors, whose sum is σ = 13933771494. Its totient is φ = 13933771492.

The previous prime is 13933771393. The next prime is 13933771573. The reversal of 13933771493 is 39417733931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8682885124 + 5250886369 = 93182^2 + 72463^2 .

It is a cyclic number.

It is not a de Polignac number, because 13933771493 - 2⁸ = 13933771237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13933771393) 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, 6966885746 + 6966885747.

It is an arithmetic number, because the mean of its divisors is an integer number (6966885747).

Almost surely, 2^13933771493 is an apocalyptic number.

It is an amenable number.

13933771493 is a deficient number, since it is larger than the sum of its proper divisors (1).

13933771493 is an equidigital number, since it uses as much as digits as its factorization.

13933771493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1285956, while the sum is 50.

The spelling of 13933771493 in words is "thirteen billion, nine hundred thirty-three million, seven hundred seventy-one thousand, four hundred ninety-three".