27420666233245 has 8 divisors (see below), whose sum is σ = 33794118384984. Its totient is φ = 21343653716544.

The previous prime is 27420666233239. The next prime is 27420666233249. The reversal of 27420666233245 is 54233266602472.

It can be written as a sum of positive squares in 4 ways, for example, as 7473241440729 + 19947424792516 = 2733723^2 + 4466254^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27420666233245 - 2³¹ = 27418518749597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27420666233192 and 27420666233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27420666233249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74109908554 + ... + 74109908923.

It is an arithmetic number, because the mean of its divisors is an integer number (4224264798123).

Almost surely, 2^{27420666233245} is an apocalyptic number.

It is an amenable number.

27420666233245 is a deficient number, since it is larger than the sum of its proper divisors (6373452151739).

27420666233245 is a wasteful number, since it uses less digits than its factorization.

27420666233245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148219817519.

The product of its (nonzero) digits is 17418240, while the sum is 52.

The spelling of 27420666233245 in words is "twenty-seven trillion, four hundred twenty billion, six hundred sixty-six million, two hundred thirty-three thousand, two hundred forty-five".