6539847912287 has 2 divisors, whose sum is σ = 6539847912288. Its totient is φ = 6539847912286.

The previous prime is 6539847912251. The next prime is 6539847912337. The reversal of 6539847912287 is 7822197489356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6539847912287 - 2⁶ = 6539847912223 is a prime.

It is a super-2 number, since 2×6539847912287² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6539847912287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6539840912287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3269923956143 + 3269923956144.

It is an arithmetic number, because the mean of its divisors is an integer number (3269923956144).

Almost surely, 2^{6539847912287} is an apocalyptic number.

6539847912287 is a deficient number, since it is larger than the sum of its proper divisors (1).

6539847912287 is an equidigital number, since it uses as much as digits as its factorization.

6539847912287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 365783040, while the sum is 71.

The spelling of 6539847912287 in words is "six trillion, five hundred thirty-nine billion, eight hundred forty-seven million, nine hundred twelve thousand, two hundred eighty-seven".