27543404117771 has 2 divisors, whose sum is σ = 27543404117772. Its totient is φ = 27543404117770.

The previous prime is 27543404117737. The next prime is 27543404117839. The reversal of 27543404117771 is 17771140434572.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27543404117771 is a prime.

It is a super-2 number, since 2×27543404117771² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27543400117771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13771702058885 + 13771702058886.

It is an arithmetic number, because the mean of its divisors is an integer number (13771702058886).

Almost surely, 2^{27543404117771} is an apocalyptic number.

27543404117771 is a deficient number, since it is larger than the sum of its proper divisors (1).

27543404117771 is an equidigital number, since it uses as much as digits as its factorization.

27543404117771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4609920, while the sum is 53.

The spelling of 27543404117771 in words is "twenty-seven trillion, five hundred forty-three billion, four hundred four million, one hundred seventeen thousand, seven hundred seventy-one".