28860216756 has 24 divisors (see below), whose sum is σ = 76960578240. Its totient is φ = 8245776192.

The previous prime is 28860216743. The next prime is 28860216757. The reversal of 28860216756 is 65761206882.

It is a happy number.

It is a super-2 number, since 2×28860216756² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28860216699 and 28860216708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860216757) 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, 171786921 + ... + 171787088.

It is an arithmetic number, because the mean of its divisors is an integer number (3206690760).

Almost surely, 2^28860216756 is an apocalyptic number.

It is an amenable number.

28860216756 is an abundant number, since it is smaller than the sum of its proper divisors (48100361484).

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

28860216756 is a wasteful number, since it uses less digits than its factorization.

28860216756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343574023 (or 343574021 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 28860216756 in words is "twenty-eight billion, eight hundred sixty million, two hundred sixteen thousand, seven hundred fifty-six".