28334918585 has 16 divisors (see below), whose sum is σ = 34798705920. Its totient is φ = 22136916480.

The previous prime is 28334918567. The next prime is 28334918587. The reversal of 28334918585 is 58581943382.

It is a happy number.

It is not a de Polignac number, because 28334918585 - 2¹⁶ = 28334853049 is a prime.

It is a super-2 number, since 2×28334918585² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28334918585.

It is not an unprimeable number, because it can be changed into a prime (28334918587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2460521 + ... + 2472009.

It is an arithmetic number, because the mean of its divisors is an integer number (2174919120).

Almost surely, 2^28334918585 is an apocalyptic number.

It is an amenable number.

28334918585 is a deficient number, since it is larger than the sum of its proper divisors (6463787335).

28334918585 is a wasteful number, since it uses less digits than its factorization.

28334918585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23008.

The product of its digits is 8294400, while the sum is 56.

The spelling of 28334918585 in words is "twenty-eight billion, three hundred thirty-four million, nine hundred eighteen thousand, five hundred eighty-five".