28362274864 has 80 divisors (see below), whose sum is σ = 69909811200. Its totient is φ = 11050213440.

The previous prime is 28362274859. The next prime is 28362274867. The reversal of 28362274864 is 46847226382.

It is a happy number.

It is a super-2 number, since 2×28362274864² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28362274867) 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, 174544 + ... + 295279.

It is an arithmetic number, because the mean of its divisors is an integer number (873872640).

Almost surely, 2^28362274864 is an apocalyptic number.

It is an amenable number.

28362274864 is an abundant number, since it is smaller than the sum of its proper divisors (41547536336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28362274864 is a wasteful number, since it uses less digits than its factorization.

28362274864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469863 (or 469843 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 52.

The spelling of 28362274864 in words is "twenty-eight billion, three hundred sixty-two million, two hundred seventy-four thousand, eight hundred sixty-four".