85867708164461 has 8 divisors (see below), whose sum is σ = 91818935464824. Its totient is φ = 80016501491200.

The previous prime is 85867708164419. The next prime is 85867708164479. The reversal of 85867708164461 is 16446180776858.

It can be written as a sum of positive squares in 4 ways, for example, as 63025101157225 + 22842607007236 = 7938835^2 + 4779394^2 .

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 85867708164461 - 2¹⁴ = 85867708148077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85867708164361) 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, 25005155000 + ... + 25005158433.

It is an arithmetic number, because the mean of its divisors is an integer number (11477366933103).

Almost surely, 2^{85867708164461} is an apocalyptic number.

It is an amenable number.

85867708164461 is a deficient number, since it is larger than the sum of its proper divisors (5951227300363).

85867708164461 is a wasteful number, since it uses less digits than its factorization.

85867708164461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50010313551.

The product of its (nonzero) digits is 433520640, while the sum is 71.

The spelling of 85867708164461 in words is "eighty-five trillion, eight hundred sixty-seven billion, seven hundred eight million, one hundred sixty-four thousand, four hundred sixty-one".