27825502747 has 12 divisors (see below), whose sum is σ = 32601316440. Its totient is φ = 23678839296.

The previous prime is 27825502729. The next prime is 27825502801. The reversal of 27825502747 is 74720552872.

It is not a de Polignac number, because 27825502747 - 2²³ = 27817114139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 27825502747.

It is not an unprimeable number, because it can be changed into a prime (27825502247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2035878 + ... + 2049499.

It is an arithmetic number, because the mean of its divisors is an integer number (2716776370).

Almost surely, 2^27825502747 is an apocalyptic number.

27825502747 is a deficient number, since it is larger than the sum of its proper divisors (4775813693).

27825502747 is a wasteful number, since it uses less digits than its factorization.

27825502747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085530 (or 4085523 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 49.

The spelling of 27825502747 in words is "twenty-seven billion, eight hundred twenty-five million, five hundred two thousand, seven hundred forty-seven".