27543404117839 has 2 divisors, whose sum is σ = 27543404117840. Its totient is φ = 27543404117838.

The previous prime is 27543404117771. The next prime is 27543404117843. The reversal of 27543404117839 is 93871140434572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27543404117839 - 2²³ = 27543395729231 is a prime.

It is a super-2 number, since 2×27543404117839² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27543404117849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13771702058919 + 13771702058920.

It is an arithmetic number, because the mean of its divisors is an integer number (13771702058920).

Almost surely, 2^{27543404117839} is an apocalyptic number.

27543404117839 is a deficient number, since it is larger than the sum of its proper divisors (1).

27543404117839 is an equidigital number, since it uses as much as digits as its factorization.

27543404117839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 27543404117839 in words is "twenty-seven trillion, five hundred forty-three billion, four hundred four million, one hundred seventeen thousand, eight hundred thirty-nine".