27747725849 has 8 divisors (see below), whose sum is σ = 29127530880. Its totient is φ = 26382369376.

The previous prime is 27747725833. The next prime is 27747725897. The reversal of 27747725849 is 94852774772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27747725849 - 2⁴ = 27747725833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27747725791 and 27747725800.

It is not an unprimeable number, because it can be changed into a prime (27747725899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3608204 + ... + 3615885.

It is an arithmetic number, because the mean of its divisors is an integer number (3640941360).

Almost surely, 2^27747725849 is an apocalyptic number.

It is an amenable number.

27747725849 is a deficient number, since it is larger than the sum of its proper divisors (1379805031).

27747725849 is a wasteful number, since it uses less digits than its factorization.

27747725849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7224279.

The product of its digits is 55319040, while the sum is 62.

The spelling of 27747725849 in words is "twenty-seven billion, seven hundred forty-seven million, seven hundred twenty-five thousand, eight hundred forty-nine".