28288848605 has 16 divisors (see below), whose sum is σ = 34147436544. Its totient is φ = 22497361920.

The previous prime is 28288848563. The next prime is 28288848613. The reversal of 28288848605 is 50684888282.

It is not a de Polignac number, because 28288848605 - 2²² = 28284654301 is a prime.

It is a super-2 number, since 2×28288848605² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

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, 1525469 + ... + 1543901.

It is an arithmetic number, because the mean of its divisors is an integer number (2134214784).

Almost surely, 2^28288848605 is an apocalyptic number.

It is an amenable number.

28288848605 is a deficient number, since it is larger than the sum of its proper divisors (5858587939).

28288848605 is a wasteful number, since it uses less digits than its factorization.

28288848605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20236.

The product of its (nonzero) digits is 15728640, while the sum is 59.

The spelling of 28288848605 in words is "twenty-eight billion, two hundred eighty-eight million, eight hundred forty-eight thousand, six hundred five".