285653884068 has 48 divisors (see below), whose sum is σ = 846381880960. Its totient is φ = 81615395232.

The previous prime is 285653884037. The next prime is 285653884081. The reversal of 285653884068 is 860488356582.

285653884068 is a `hidden beast` number, since 2 + 8 + 56 + 538 + 8 + 40 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 285653883996 and 285653884014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188923771 + ... + 188925282.

Almost surely, 2^285653884068 is an apocalyptic number.

285653884068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

285653884068 is an abundant number, since it is smaller than the sum of its proper divisors (560727996892).

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

285653884068 is a wasteful number, since it uses less digits than its factorization.

285653884068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377849073 (or 377849065 counting only the distinct ones).

The product of its (nonzero) digits is 88473600, while the sum is 63.

The spelling of 285653884068 in words is "two hundred eighty-five billion, six hundred fifty-three million, eight hundred eighty-four thousand, sixty-eight".