27094147609 has 9 divisors (see below), whose sum is σ = 27246930879. Its totient is φ = 26942219040.

The previous prime is 27094147567. The next prime is 27094147627. The reversal of 27094147609 is 90674149072.

The square root of 27094147609 is 164603.

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

It can be written as a sum of positive squares in only one way, i.e., 20376706009 + 6717441600 = 142747^2 + 81960^2 .

It is not a de Polignac number, because 27094147609 - 2⁹ = 27094147097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27094147679) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 39668982 + ... + 39669664.

Almost surely, 2^27094147609 is an apocalyptic number.

27094147609 is the 164603-rd square number.

27094147609 is the 82302-nd centered octagonal number.

It is an amenable number.

27094147609 is a deficient number, since it is larger than the sum of its proper divisors (152783270).

27094147609 is an frugal number, since it uses more digits than its factorization.

27094147609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

Multiplying 27094147609 by its sum of digits (49), we get a square (1327613232841 = 1152221²).

The spelling of 27094147609 in words is "twenty-seven billion, ninety-four million, one hundred forty-seven thousand, six hundred nine".