27001391041 has 3 divisors (see below), whose sum is σ = 27001555363. Its totient is φ = 27001226720.

The previous prime is 27001390973. The next prime is 27001391063. The reversal of 27001391041 is 14019310072.

The square root of 27001391041 is 164321.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 848032641 + 26153358400 = 29121^2 + 161720^2 .

It is not a de Polignac number, because 27001391041 - 2⁹ = 27001390529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27001391071) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 82161 + ... + 246481.

Almost surely, 2^27001391041 is an apocalyptic number.

27001391041 is the 164321-st square number.

27001391041 is the 82161-st centered octagonal number.

It is an amenable number.

27001391041 is a deficient number, since it is larger than the sum of its proper divisors (164322).

27001391041 is an frugal number, since it uses more digits than its factorization.

27001391041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328642 (or 164321 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 27001391041 in words is "twenty-seven billion, one million, three hundred ninety-one thousand, forty-one".