13841728477 has 2 divisors, whose sum is σ = 13841728478. Its totient is φ = 13841728476.

The previous prime is 13841728421. The next prime is 13841728529. The reversal of 13841728477 is 77482714831.

It is an a-pointer prime, because the next prime (13841728529) can be obtained adding 13841728477 to its sum of digits (52).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8792062756 + 5049665721 = 93766^2 + 71061^2 .

It is a cyclic number.

It is not a de Polignac number, because 13841728477 - 2²⁷ = 13707510749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13841728577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6920864238 + 6920864239.

It is an arithmetic number, because the mean of its divisors is an integer number (6920864239).

Almost surely, 2^13841728477 is an apocalyptic number.

It is an amenable number.

13841728477 is a deficient number, since it is larger than the sum of its proper divisors (1).

13841728477 is an equidigital number, since it uses as much as digits as its factorization.

13841728477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2107392, while the sum is 52.

The spelling of 13841728477 in words is "thirteen billion, eight hundred forty-one million, seven hundred twenty-eight thousand, four hundred seventy-seven".