27771606041 has 4 divisors (see below), whose sum is σ = 27819737652. Its totient is φ = 27723474432.

The previous prime is 27771605941. The next prime is 27771606067. The reversal of 27771606041 is 14060617772.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25927762441 + 1843843600 = 161021^2 + 42940^2 .

It is a de Polignac number, because none of the positive numbers 2^k-27771606041 is a prime.

It is a super-3 number, since 3×27771606041³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27771606041.

It is not an unprimeable number, because it can be changed into a prime (27771606241) 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, 24064940 + ... + 24066093.

It is an arithmetic number, because the mean of its divisors is an integer number (6954934413).

Almost surely, 2^27771606041 is an apocalyptic number.

It is an amenable number.

27771606041 is a deficient number, since it is larger than the sum of its proper divisors (48131611).

27771606041 is an equidigital number, since it uses as much as digits as its factorization.

27771606041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48131610.

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 27771606041 in words is "twenty-seven billion, seven hundred seventy-one million, six hundred six thousand, forty-one".