5205986671 has 2 divisors, whose sum is σ = 5205986672. Its totient is φ = 5205986670.

The previous prime is 5205986647. The next prime is 5205986713. The reversal of 5205986671 is 1766895025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5205986671 - 2²¹ = 5203889519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5205986971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602993335 + 2602993336.

It is an arithmetic number, because the mean of its divisors is an integer number (2602993336).

Almost surely, 2^5205986671 is an apocalyptic number.

5205986671 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205986671 is an equidigital number, since it uses as much as digits as its factorization.

5205986671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 5205986671 is about 72152.5236634173. The cubic root of 5205986671 is about 1733.1428132025.

The spelling of 5205986671 in words is "five billion, two hundred five million, nine hundred eighty-six thousand, six hundred seventy-one".