285888728872 has 16 divisors (see below), whose sum is σ = 536067136800. Its totient is φ = 142937492400.

The previous prime is 285888728843. The next prime is 285888728921. The reversal of 285888728872 is 278827888582.

It is a junction number, because it is equal to n+sod(n) for n = 285888728795 and 285888728804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680004 + ... + 1016947.

It is an arithmetic number, because the mean of its divisors is an integer number (33504196050).

Almost surely, 2^285888728872 is an apocalyptic number.

It is an amenable number.

285888728872 is a deficient number, since it is larger than the sum of its proper divisors (250178407928).

285888728872 is a wasteful number, since it uses less digits than its factorization.

285888728872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718016 (or 1718012 counting only the distinct ones).

The product of its digits is 513802240, while the sum is 73.

The spelling of 285888728872 in words is "two hundred eighty-five billion, eight hundred eighty-eight million, seven hundred twenty-eight thousand, eight hundred seventy-two".