28450442275460 has 12 divisors (see below), whose sum is σ = 59745928778508. Its totient is φ = 11380176910176.

The previous prime is 28450442275447. The next prime is 28450442275469. The reversal of 28450442275460 is 6457224405482.

It can be written as a sum of positive squares in 2 ways, for example, as 19223805174016 + 9226637101444 = 4384496^2 + 3037538^2 .

It is not an unprimeable number, because it can be changed into a prime (28450442275469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711261056867 + ... + 711261056906.

It is an arithmetic number, because the mean of its divisors is an integer number (4978827398209).

Almost surely, 2^{28450442275460} is an apocalyptic number.

28450442275460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28450442275460 is an abundant number, since it is smaller than the sum of its proper divisors (31295486503048).

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

28450442275460 is a wasteful number, since it uses less digits than its factorization.

28450442275460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422522113782 (or 1422522113780 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 53.

The spelling of 28450442275460 in words is "twenty-eight trillion, four hundred fifty billion, four hundred forty-two million, two hundred seventy-five thousand, four hundred sixty".