85432981228 has 36 divisors (see below), whose sum is σ = 181508150320. Its totient is φ = 34460358912.

The previous prime is 85432981169. The next prime is 85432981289. The reversal of 85432981228 is 82218923458.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5270763 + ... + 5286946.

Almost surely, 2^85432981228 is an apocalyptic number.

It is an amenable number.

85432981228 is an abundant number, since it is smaller than the sum of its proper divisors (96075169092).

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

85432981228 is a wasteful number, since it uses less digits than its factorization.

85432981228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10557754 (or 10557735 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 52.

The spelling of 85432981228 in words is "eighty-five billion, four hundred thirty-two million, nine hundred eighty-one thousand, two hundred twenty-eight".