28075444960 has 48 divisors (see below), whose sum is σ = 69212084256. Its totient is φ = 10741907968.

The previous prime is 28075444951. The next prime is 28075444961. The reversal of 28075444960 is 6944457082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28075444961) 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, 3810919 + ... + 3818278.

It is an arithmetic number, because the mean of its divisors is an integer number (1441918422).

Almost surely, 2^28075444960 is an apocalyptic number.

28075444960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28075444960 is an abundant number, since it is smaller than the sum of its proper divisors (41136639296).

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

28075444960 is a wasteful number, since it uses less digits than its factorization.

28075444960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7629235 (or 7629227 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 28075444960 in words is "twenty-eight billion, seventy-five million, four hundred forty-four thousand, nine hundred sixty".