28005275275 has 6 divisors (see below), whose sum is σ = 34726541372. Its totient is φ = 22404220200.

The previous prime is 28005275273. The next prime is 28005275281. The reversal of 28005275275 is 57257250082.

It is not a de Polignac number, because 28005275275 - 2¹ = 28005275273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28005275273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560105481 + ... + 560105530.

Almost surely, 2^28005275275 is an apocalyptic number.

28005275275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28005275275 is a deficient number, since it is larger than the sum of its proper divisors (6721266097).

28005275275 is a wasteful number, since it uses less digits than its factorization.

28005275275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120211021 (or 1120211016 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

The spelling of 28005275275 in words is "twenty-eight billion, five million, two hundred seventy-five thousand, two hundred seventy-five".