285631045949888 has 28 divisors (see below), whose sum is σ = 591442546236240. Its totient is φ = 136606152410112.

The previous prime is 285631045949869. The next prime is 285631045949941. The reversal of 285631045949888 is 888949540136582.

It is a congruent number.

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, 97021413593 + ... + 97021416536.

Almost surely, 2^{285631045949888} is an apocalyptic number.

It is an amenable number.

285631045949888 is an abundant number, since it is smaller than the sum of its proper divisors (305811500286352).

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

285631045949888 is a wasteful number, since it uses less digits than its factorization.

285631045949888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194042830164 (or 194042830154 counting only the distinct ones).

The product of its (nonzero) digits is 4777574400, while the sum is 80.

The spelling of 285631045949888 in words is "two hundred eighty-five trillion, six hundred thirty-one billion, forty-five million, nine hundred forty-nine thousand, eight hundred eighty-eight".