27606725851 has 4 divisors (see below), whose sum is σ = 27607118104. Its totient is φ = 27606333600.

The previous prime is 27606725779. The next prime is 27606725863. The reversal of 27606725851 is 15852760672.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27606725851 - 2¹³ = 27606717659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27606725795 and 27606725804.

It is not an unprimeable number, because it can be changed into a prime (27606725891) 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, 58245 + ... + 242086.

It is an arithmetic number, because the mean of its divisors is an integer number (6901779526).

Almost surely, 2^27606725851 is an apocalyptic number.

27606725851 is a deficient number, since it is larger than the sum of its proper divisors (392253).

27606725851 is an equidigital number, since it uses as much as digits as its factorization.

27606725851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392252.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 27606725851 in words is "twenty-seven billion, six hundred six million, seven hundred twenty-five thousand, eight hundred fifty-one".