85764442018 has 32 divisors (see below), whose sum is σ = 130316040000. Its totient is φ = 42330214080.

The previous prime is 85764442013. The next prime is 85764442051. The reversal of 85764442018 is 81024446758.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85764442013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 39358453 + ... + 39360631.

It is an arithmetic number, because the mean of its divisors is an integer number (4072376250).

Almost surely, 2^85764442018 is an apocalyptic number.

85764442018 is a deficient number, since it is larger than the sum of its proper divisors (44551597982).

85764442018 is a wasteful number, since it uses less digits than its factorization.

85764442018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090.

The product of its (nonzero) digits is 1720320, while the sum is 49.

The spelling of 85764442018 in words is "eighty-five billion, seven hundred sixty-four million, four hundred forty-two thousand, eighteen".