13555724879 has 2 divisors, whose sum is σ = 13555724880. Its totient is φ = 13555724878.

The previous prime is 13555724867. The next prime is 13555724893. The reversal of 13555724879 is 97842755531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13555724879 - 2¹⁶ = 13555659343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13555724839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777862439 + 6777862440.

It is an arithmetic number, because the mean of its divisors is an integer number (6777862440).

Almost surely, 2^13555724879 is an apocalyptic number.

13555724879 is a deficient number, since it is larger than the sum of its proper divisors (1).

13555724879 is an equidigital number, since it uses as much as digits as its factorization.

13555724879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584000, while the sum is 56.

The spelling of 13555724879 in words is "thirteen billion, five hundred fifty-five million, seven hundred twenty-four thousand, eight hundred seventy-nine".