28253180316 has 24 divisors (see below), whose sum is σ = 67705820560. Its totient is φ = 9163193472.

The previous prime is 28253180309. The next prime is 28253180341. The reversal of 28253180316 is 61308135282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31816201 + ... + 31817088.

Almost surely, 2^28253180316 is an apocalyptic number.

It is an amenable number.

28253180316 is an abundant number, since it is smaller than the sum of its proper divisors (39452640244).

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

28253180316 is a wasteful number, since it uses less digits than its factorization.

28253180316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63633333 (or 63633331 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 28253180316 in words is "twenty-eight billion, two hundred fifty-three million, one hundred eighty thousand, three hundred sixteen".