285987109060 has 24 divisors (see below), whose sum is σ = 607808750976. Its totient is φ = 113016591840.

The previous prime is 285987109019. The next prime is 285987109069. The reversal of 285987109060 is 60901789582.

It is a junction number, because it is equal to n+sod(n) for n = 285987108992 and 285987109010.

It is not an unprimeable number, because it can be changed into a prime (285987109069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86139036 + ... + 86142355.

It is an arithmetic number, because the mean of its divisors is an integer number (25325364624).

Almost surely, 2^285987109060 is an apocalyptic number.

285987109060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285987109060 is an abundant number, since it is smaller than the sum of its proper divisors (321821641916).

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

285987109060 is a wasteful number, since it uses less digits than its factorization.

285987109060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172281483 (or 172281481 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 285987109060 in words is "two hundred eighty-five billion, nine hundred eighty-seven million, one hundred nine thousand, sixty".