28308327830 has 16 divisors (see below), whose sum is σ = 51179465520. Its totient is φ = 11273447712.

The previous prime is 28308327823. The next prime is 28308327833. The reversal of 28308327830 is 3872380382.

It is a super-2 number, since 2×28308327830² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28308327833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6233045 + ... + 6237584.

It is an arithmetic number, because the mean of its divisors is an integer number (3198716595).

Almost surely, 2^28308327830 is an apocalyptic number.

28308327830 is a deficient number, since it is larger than the sum of its proper divisors (22871137690).

28308327830 is a wasteful number, since it uses less digits than its factorization.

28308327830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12470863.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 28308327830 in words is "twenty-eight billion, three hundred eight million, three hundred twenty-seven thousand, eight hundred thirty".