13820484493 has 2 divisors, whose sum is σ = 13820484494. Its totient is φ = 13820484492.

The previous prime is 13820484487. The next prime is 13820484497. The reversal of 13820484493 is 39448402831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11609416009 + 2211068484 = 107747^2 + 47022^2 .

It is a cyclic number.

It is not a de Polignac number, because 13820484493 - 2¹³ = 13820476301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13820484497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6910242246 + 6910242247.

It is an arithmetic number, because the mean of its divisors is an integer number (6910242247).

Almost surely, 2^13820484493 is an apocalyptic number.

It is an amenable number.

13820484493 is a deficient number, since it is larger than the sum of its proper divisors (1).

13820484493 is an equidigital number, since it uses as much as digits as its factorization.

13820484493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 13820484493 in words is "thirteen billion, eight hundred twenty million, four hundred eighty-four thousand, four hundred ninety-three".