85072785384098 has 18 divisors (see below), whose sum is σ = 130798331965107. Its totient is φ = 41498658819840.

The previous prime is 85072785384091. The next prime is 85072785384133. The reversal of 85072785384098 is 89048358727058.

It can be written as a sum of positive squares in 5 ways, for example, as 32313960904369 + 52758824479729 = 5684537^2 + 7263527^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6521993.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85072785384091) 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 8 ways as a sum of consecutive naturals, for example, 534723890 + ... + 534882962.

Almost surely, 2^{85072785384098} is an apocalyptic number.

85072785384098 is a deficient number, since it is larger than the sum of its proper divisors (45725546581009).

85072785384098 is an frugal number, since it uses more digits than its factorization.

85072785384098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318230 (or 159116 counting only the distinct ones).

The product of its (nonzero) digits is 1083801600, while the sum is 74.

The spelling of 85072785384098 in words is "eighty-five trillion, seventy-two billion, seven hundred eighty-five million, three hundred eighty-four thousand, ninety-eight".