28947250272 has 48 divisors (see below), whose sum is σ = 79985828160. Its totient is φ = 9141236352.

The previous prime is 28947250219. The next prime is 28947250279. The reversal of 28947250272 is 27205274982.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28947250279) 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, 7933278 + ... + 7936925.

It is an arithmetic number, because the mean of its divisors is an integer number (1666371420).

Almost surely, 2^28947250272 is an apocalyptic number.

It is an amenable number.

28947250272 is an abundant number, since it is smaller than the sum of its proper divisors (51038577888).

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

28947250272 is a wasteful number, since it uses less digits than its factorization.

28947250272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15870235 (or 15870227 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 28947250272 in words is "twenty-eight billion, nine hundred forty-seven million, two hundred fifty thousand, two hundred seventy-two".