85811071216287 has 8 divisors (see below), whose sum is σ = 114414886949040. Its totient is φ = 57207318147200.

The previous prime is 85811071216237. The next prime is 85811071216313. The reversal of 85811071216287 is 78261217011858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85811071216287 - 2¹⁹ = 85811070691999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85811071216207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12371712 + ... + 18018917.

It is an arithmetic number, because the mean of its divisors is an integer number (14301860868630).

Almost surely, 2^{85811071216287} is an apocalyptic number.

85811071216287 is a deficient number, since it is larger than the sum of its proper divisors (28603815732753).

85811071216287 is a wasteful number, since it uses less digits than its factorization.

85811071216287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31331833.

The product of its (nonzero) digits is 3010560, while the sum is 57.

The spelling of 85811071216287 in words is "eighty-five trillion, eight hundred eleven billion, seventy-one million, two hundred sixteen thousand, two hundred eighty-seven".