85623832777 has 16 divisors (see below), whose sum is σ = 99528220800. Its totient is φ = 72137894400.

The previous prime is 85623832699. The next prime is 85623832781. The reversal of 85623832777 is 77723832658.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85623832777 - 2²⁷ = 85489615049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85623833777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5662527 + ... + 5677627.

It is an arithmetic number, because the mean of its divisors is an integer number (6220513800).

Almost surely, 2^85623832777 is an apocalyptic number.

It is an amenable number.

85623832777 is a deficient number, since it is larger than the sum of its proper divisors (13904388023).

85623832777 is a wasteful number, since it uses less digits than its factorization.

85623832777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28896.

The product of its digits is 23708160, while the sum is 58.

The spelling of 85623832777 in words is "eighty-five billion, six hundred twenty-three million, eight hundred thirty-two thousand, seven hundred seventy-seven".