85444436994 has 16 divisors (see below), whose sum is σ = 195301570368. Its totient is φ = 24412696272.

The previous prime is 85444436977. The next prime is 85444436999. The reversal of 85444436994 is 49963444458.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85444436999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017195637 + ... + 1017195720.

It is an arithmetic number, because the mean of its divisors is an integer number (12206348148).

Almost surely, 2^85444436994 is an apocalyptic number.

85444436994 is an abundant number, since it is smaller than the sum of its proper divisors (109857133374).

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

85444436994 is a wasteful number, since it uses less digits than its factorization.

85444436994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034391369.

The product of its digits is 59719680, while the sum is 60.

The spelling of 85444436994 in words is "eighty-five billion, four hundred forty-four million, four hundred thirty-six thousand, nine hundred ninety-four".