285162378868225 has 12 divisors (see below), whose sum is σ = 353604952680304. Its totient is φ = 228127578653520.

The previous prime is 285162378868181. The next prime is 285162378868247. The reversal of 285162378868225 is 522868873261582.

It is not a de Polignac number, because 285162378868225 - 2¹¹ = 285162378866177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55606239 + ... + 60517588.

Almost surely, 2^{285162378868225} is an apocalyptic number.

285162378868225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285162378868225 is a deficient number, since it is larger than the sum of its proper divisors (68442573812079).

285162378868225 is a wasteful number, since it uses less digits than its factorization.

285162378868225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116222064 (or 116222059 counting only the distinct ones).

The product of its digits is 1238630400, while the sum is 73.

The spelling of 285162378868225 in words is "two hundred eighty-five trillion, one hundred sixty-two billion, three hundred seventy-eight million, eight hundred sixty-eight thousand, two hundred twenty-five".