8505736090511 has 24 divisors (see below), whose sum is σ = 9745276643760. Its totient is φ = 7411209886080.

The previous prime is 8505736090499. The next prime is 8505736090549. The reversal of 8505736090511 is 1150906375058.

It is not a de Polignac number, because 8505736090511 - 2⁶ = 8505736090447 is a prime.

It is a super-2 number, since 2×8505736090511² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8505736090511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505736090571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13878206 + ... + 14478123.

It is an arithmetic number, because the mean of its divisors is an integer number (406053193490).

Almost surely, 2^{8505736090511} is an apocalyptic number.

8505736090511 is a deficient number, since it is larger than the sum of its proper divisors (1239540553249).

8505736090511 is a wasteful number, since it uses less digits than its factorization.

8505736090511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28356455 (or 28356444 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 50.

The spelling of 8505736090511 in words is "eight trillion, five hundred five billion, seven hundred thirty-six million, ninety thousand, five hundred eleven".