13861782859 has 2 divisors, whose sum is σ = 13861782860. Its totient is φ = 13861782858.

The previous prime is 13861782821. The next prime is 13861782871. The reversal of 13861782859 is 95828716831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13861782859 - 2⁷ = 13861782731 is a prime.

It is not a weakly prime, because it can be changed into another prime (13861782059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6930891429 + 6930891430.

It is an arithmetic number, because the mean of its divisors is an integer number (6930891430).

Almost surely, 2^13861782859 is an apocalyptic number.

13861782859 is a deficient number, since it is larger than the sum of its proper divisors (1).

13861782859 is an equidigital number, since it uses as much as digits as its factorization.

13861782859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 58.

The spelling of 13861782859 in words is "thirteen billion, eight hundred sixty-one million, seven hundred eighty-two thousand, eight hundred fifty-nine".