985633490578 has 32 divisors (see below), whose sum is σ = 1631284272000. Its totient is φ = 442897825920.

The previous prime is 985633490573. The next prime is 985633490581. The reversal of 985633490578 is 875094336589.

985633490578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (985633490573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10996528 + ... + 11085796.

It is an arithmetic number, because the mean of its divisors is an integer number (50977633500).

Almost surely, 2^985633490578 is an apocalyptic number.

985633490578 is a deficient number, since it is larger than the sum of its proper divisors (645650781422).

985633490578 is a wasteful number, since it uses less digits than its factorization.

985633490578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95010.

The product of its (nonzero) digits is 195955200, while the sum is 67.

The spelling of 985633490578 in words is "nine hundred eighty-five billion, six hundred thirty-three million, four hundred ninety thousand, five hundred seventy-eight".