206095617487 has 2 divisors, whose sum is σ = 206095617488. Its totient is φ = 206095617486.

The previous prime is 206095617473. The next prime is 206095617547. The reversal of 206095617487 is 784716590602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206095617487 - 2¹⁹ = 206095093199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206095611487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103047808743 + 103047808744.

It is an arithmetic number, because the mean of its divisors is an integer number (103047808744).

Almost surely, 2^206095617487 is an apocalyptic number.

206095617487 is a deficient number, since it is larger than the sum of its proper divisors (1).

206095617487 is an equidigital number, since it uses as much as digits as its factorization.

206095617487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 206095617487 in words is "two hundred six billion, ninety-five million, six hundred seventeen thousand, four hundred eighty-seven".