27206609949 has 24 divisors (see below), whose sum is σ = 40636673792. Its totient is φ = 17522127360.

The previous prime is 27206609933. The next prime is 27206609959. The reversal of 27206609949 is 94990660272.

27206609949 is a `hidden beast` number, since 2 + 7 + 20 + 6 + 609 + 9 + 4 + 9 = 666.

It is not a de Polignac number, because 27206609949 - 2⁴ = 27206609933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27206609895 and 27206609904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27206609959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76482 + ... + 245484.

Almost surely, 2^27206609949 is an apocalyptic number.

It is an amenable number.

27206609949 is a deficient number, since it is larger than the sum of its proper divisors (13430063843).

27206609949 is a wasteful number, since it uses less digits than its factorization.

27206609949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169617 (or 169614 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 27206609949 in words is "twenty-seven billion, two hundred six million, six hundred nine thousand, nine hundred forty-nine".