83509847534287 has 2 divisors, whose sum is σ = 83509847534288. Its totient is φ = 83509847534286.

The previous prime is 83509847534131. The next prime is 83509847534293. The reversal of 83509847534287 is 78243574890538.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83509847534287 is a prime.

It is a super-3 number, since 3×83509847534287³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83509847534887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41754923767143 + 41754923767144.

It is an arithmetic number, because the mean of its divisors is an integer number (41754923767144).

Almost surely, 2^{83509847534287} is an apocalyptic number.

83509847534287 is a deficient number, since it is larger than the sum of its proper divisors (1).

83509847534287 is an equidigital number, since it uses as much as digits as its factorization.

83509847534287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1625702400, while the sum is 73.

The spelling of 83509847534287 in words is "eighty-three trillion, five hundred nine billion, eight hundred forty-seven million, five hundred thirty-four thousand, two hundred eighty-seven".