85390079786 has 32 divisors (see below), whose sum is σ = 141634579968. Its totient is φ = 38285875440.

The previous prime is 85390079783. The next prime is 85390079821. The reversal of 85390079786 is 68797009358.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85390079783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137755 + ... + 1210481.

It is an arithmetic number, because the mean of its divisors is an integer number (4426080624).

Almost surely, 2^85390079786 is an apocalyptic number.

85390079786 is a deficient number, since it is larger than the sum of its proper divisors (56244500182).

85390079786 is a wasteful number, since it uses less digits than its factorization.

85390079786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73466.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 85390079786 in words is "eighty-five billion, three hundred ninety million, seventy-nine thousand, seven hundred eighty-six".