27827807575 has 6 divisors (see below), whose sum is σ = 34506481424. Its totient is φ = 22262246040.

The previous prime is 27827807543. The next prime is 27827807621. The reversal of 27827807575 is 57570872872.

It is not a de Polignac number, because 27827807575 - 2⁵ = 27827807543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556556127 + ... + 556556176.

Almost surely, 2^27827807575 is an apocalyptic number.

27827807575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27827807575 is a deficient number, since it is larger than the sum of its proper divisors (6678673849).

27827807575 is a wasteful number, since it uses less digits than its factorization.

27827807575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113112313 (or 1113112308 counting only the distinct ones).

The product of its (nonzero) digits is 15366400, while the sum is 58.

The spelling of 27827807575 in words is "twenty-seven billion, eight hundred twenty-seven million, eight hundred seven thousand, five hundred seventy-five".