27852572749 has 4 divisors (see below), whose sum is σ = 27853602336. Its totient is φ = 27851543164.

The previous prime is 27852572743. The next prime is 27852572771. The reversal of 27852572749 is 94727525872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27852572749 - 2¹¹ = 27852570701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27852572693 and 27852572702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27852572743) 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, 473089 + ... + 528694.

It is an arithmetic number, because the mean of its divisors is an integer number (6963400584).

Almost surely, 2^27852572749 is an apocalyptic number.

It is an amenable number.

27852572749 is a deficient number, since it is larger than the sum of its proper divisors (1029587).

27852572749 is a wasteful number, since it uses less digits than its factorization.

27852572749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029586.

The product of its digits is 19756800, while the sum is 58.

The spelling of 27852572749 in words is "twenty-seven billion, eight hundred fifty-two million, five hundred seventy-two thousand, seven hundred forty-nine".