505000000089 has 48 divisors (see below), whose sum is σ = 845347916160. Its totient is φ = 297257463360.

The previous prime is 505000000081. The next prime is 505000000139. The reversal of 505000000089 is 980000000505.

It is not a de Polignac number, because 505000000089 - 2³ = 505000000081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 504999999999 and 505000000071.

It is not an unprimeable number, because it can be changed into a prime (505000000081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2300982 + ... + 2510879.

It is an arithmetic number, because the mean of its divisors is an integer number (17611414920).

Almost surely, 2^505000000089 is an apocalyptic number.

It is an amenable number.

505000000089 is a deficient number, since it is larger than the sum of its proper divisors (340347916071).

505000000089 is a wasteful number, since it uses less digits than its factorization.

505000000089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811919 (or 4811900 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 505000000089 in words is "five hundred five billion, eighty-nine", and thus it is an aban number.