85817482776 has 320 divisors, whose sum is σ = 263011795200. Its totient is φ = 26069299200.

The previous prime is 85817482771. The next prime is 85817482831. The reversal of 85817482776 is 67728471858.

85817482776 is a `hidden beast` number, since 8 + 5 + 81 + 7 + 482 + 7 + 76 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85817482771) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 23882836 + ... + 23886428.

It is an arithmetic number, because the mean of its divisors is an integer number (821911860).

Almost surely, 2^85817482776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85817482776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131505897600).

85817482776 is an abundant number, since it is smaller than the sum of its proper divisors (177194312424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85817482776 is a wasteful number, since it uses less digits than its factorization.

85817482776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712 (or 3699 counting only the distinct ones).

The product of its digits is 42147840, while the sum is 63.

The spelling of 85817482776 in words is "eighty-five billion, eight hundred seventeen million, four hundred eighty-two thousand, seven hundred seventy-six".