285050099948505 has 96 divisors (see below), whose sum is σ = 493605006975360. Its totient is φ = 140077443778560.

The previous prime is 285050099948491. The next prime is 285050099948507. The reversal of 285050099948505 is 505849990050582.

It is not a de Polignac number, because 285050099948505 - 2⁶ = 285050099948441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285050099948505.

It is not an unprimeable number, because it can be changed into a prime (285050099948507) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 997509045 + ... + 997794765.

It is an arithmetic number, because the mean of its divisors is an integer number (5141718822660).

Almost surely, 2^{285050099948505} is an apocalyptic number.

It is an amenable number.

285050099948505 is a deficient number, since it is larger than the sum of its proper divisors (208554907026855).

285050099948505 is a wasteful number, since it uses less digits than its factorization.

285050099948505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288379 (or 288342 counting only the distinct ones).

The product of its (nonzero) digits is 233280000, while the sum is 69.

The spelling of 285050099948505 in words is "two hundred eighty-five trillion, fifty billion, ninety-nine million, nine hundred forty-eight thousand, five hundred five".