85871552737 has 2 divisors, whose sum is σ = 85871552738. Its totient is φ = 85871552736.

The previous prime is 85871552731. The next prime is 85871552791. The reversal of 85871552737 is 73725517858.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77301236961 + 8570315776 = 278031^2 + 92576^2 .

It is a cyclic number.

It is not a de Polignac number, because 85871552737 - 2¹¹ = 85871550689 is a prime.

It is not a weakly prime, because it can be changed into another prime (85871552731) 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, 42935776368 + 42935776369.

It is an arithmetic number, because the mean of its divisors is an integer number (42935776369).

Almost surely, 2^85871552737 is an apocalyptic number.

It is an amenable number.

85871552737 is a deficient number, since it is larger than the sum of its proper divisors (1).

85871552737 is an equidigital number, since it uses as much as digits as its factorization.

85871552737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464000, while the sum is 58.

The spelling of 85871552737 in words is "eighty-five billion, eight hundred seventy-one million, five hundred fifty-two thousand, seven hundred thirty-seven".