85247786044 has 12 divisors (see below), whose sum is σ = 149185711584. Its totient is φ = 42623297024.

The previous prime is 85247786009. The next prime is 85247786047. The reversal of 85247786044 is 44068774258.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85247786047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387324 + ... + 566140.

It is an arithmetic number, because the mean of its divisors is an integer number (12432142632).

Almost surely, 2^85247786044 is an apocalyptic number.

It is an amenable number.

85247786044 is a deficient number, since it is larger than the sum of its proper divisors (63937925540).

85247786044 is a wasteful number, since it uses less digits than its factorization.

85247786044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298004 (or 298002 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 55.

The spelling of 85247786044 in words is "eighty-five billion, two hundred forty-seven million, seven hundred eighty-six thousand, forty-four".