8505853268990 has 32 divisors (see below), whose sum is σ = 19088460324864. Its totient is φ = 2651175044640.

The previous prime is 8505853268917. The next prime is 8505853269007. The reversal of 8505853268990 is 998623585058.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8505853268990.

It is a congruent number.

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, 5523280574 + ... + 5523282113.

It is an arithmetic number, because the mean of its divisors is an integer number (596514385152).

Almost surely, 2^{8505853268990} is an apocalyptic number.

8505853268990 is an abundant number, since it is smaller than the sum of its proper divisors (10582607055874).

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

8505853268990 is a wasteful number, since it uses less digits than its factorization.

8505853268990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11046562712.

The product of its (nonzero) digits is 186624000, while the sum is 68.

The spelling of 8505853268990 in words is "eight trillion, five hundred five billion, eight hundred fifty-three million, two hundred sixty-eight thousand, nine hundred ninety".