28253216952 has 48 divisors (see below), whose sum is σ = 76622261040. Its totient is φ = 9405045888.

The previous prime is 28253216941. The next prime is 28253217011. The reversal of 28253216952 is 25961235282.

28253216952 is a `hidden beast` number, since 2 + 8 + 2 + 532 + 1 + 69 + 52 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28253216898 and 28253216907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210573 + ... + 317564.

It is an arithmetic number, because the mean of its divisors is an integer number (1596297105).

Almost surely, 2^28253216952 is an apocalyptic number.

It is an amenable number.

28253216952 is an abundant number, since it is smaller than the sum of its proper divisors (48369044088).

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

28253216952 is a wasteful number, since it uses less digits than its factorization.

28253216952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528892 (or 528885 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 28253216952 in words is "twenty-eight billion, two hundred fifty-three million, two hundred sixteen thousand, nine hundred fifty-two".