85776945221 has 8 divisors (see below), whose sum is σ = 93699458688. Its totient is φ = 77875200000.

The previous prime is 85776945157. The next prime is 85776945227. The reversal of 85776945221 is 12254967758.

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 85776945221 - 2⁶ = 85776945157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85776945227) 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 7 ways as a sum of consecutive naturals, for example, 5183420 + ... + 5199941.

It is an arithmetic number, because the mean of its divisors is an integer number (11712432336).

Almost surely, 2^85776945221 is an apocalyptic number.

It is an amenable number.

85776945221 is a deficient number, since it is larger than the sum of its proper divisors (7922513467).

85776945221 is a wasteful number, since it uses less digits than its factorization.

85776945221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10384123.

The product of its digits is 8467200, while the sum is 56.

The spelling of 85776945221 in words is "eighty-five billion, seven hundred seventy-six million, nine hundred forty-five thousand, two hundred twenty-one".