85831277766 has 16 divisors (see below), whose sum is σ = 184867367664. Its totient is φ = 26409623904.

The previous prime is 85831277723. The next prime is 85831277783. The reversal of 85831277766 is 66777213858.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 550200421 + ... + 550200576.

It is an arithmetic number, because the mean of its divisors is an integer number (11554210479).

Almost surely, 2^85831277766 is an apocalyptic number.

85831277766 is an abundant number, since it is smaller than the sum of its proper divisors (99036089898).

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

85831277766 is a wasteful number, since it uses less digits than its factorization.

85831277766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100401015.

The product of its digits is 23708160, while the sum is 60.

The spelling of 85831277766 in words is "eighty-five billion, eight hundred thirty-one million, two hundred seventy-seven thousand, seven hundred sixty-six".