985278872589 has 16 divisors (see below), whose sum is σ = 1434255232320. Its totient is φ = 596671074560.

The previous prime is 985278872581. The next prime is 985278872621.

985278872589 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 985278872589 - 2³ = 985278872581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985278872581) 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, 11648124 + ... + 11732405.

It is an arithmetic number, because the mean of its divisors is an integer number (89640952020).

Almost surely, 2^985278872589 is an apocalyptic number.

It is an amenable number.

985278872589 is a deficient number, since it is larger than the sum of its proper divisors (448976359731).

985278872589 is a wasteful number, since it uses less digits than its factorization.

985278872589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23381820.

The product of its digits is 1625702400, while the sum is 78.

The spelling of 985278872589 in words is "nine hundred eighty-five billion, two hundred seventy-eight million, eight hundred seventy-two thousand, five hundred eighty-nine".