8145436727 has 2 divisors, whose sum is σ = 8145436728. Its totient is φ = 8145436726.

The previous prime is 8145436711. The next prime is 8145436777. The reversal of 8145436727 is 7276345418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8145436727 - 2⁴ = 8145436711 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8145436777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4072718363 + 4072718364.

It is an arithmetic number, because the mean of its divisors is an integer number (4072718364).

Almost surely, 2^8145436727 is an apocalyptic number.

8145436727 is a deficient number, since it is larger than the sum of its proper divisors (1).

8145436727 is an equidigital number, since it uses as much as digits as its factorization.

8145436727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 47.

The square root of 8145436727 is about 90252.0732559646. The cubic root of 8145436727 is about 2012.0470162505.

The spelling of 8145436727 in words is "eight billion, one hundred forty-five million, four hundred thirty-six thousand, seven hundred twenty-seven".