27479670628245 has 64 divisors (see below), whose sum is σ = 49266916844544. Its totient is φ = 12966490437120.

The previous prime is 27479670628187. The next prime is 27479670628271. The reversal of 27479670628245 is 54282607697472.

It is not a de Polignac number, because 27479670628245 - 2⁹ = 27479670627733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27479670628245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14056672 + ... + 15891801.

It is an arithmetic number, because the mean of its divisors is an integer number (769795575696).

Almost surely, 2^{27479670628245} is an apocalyptic number.

It is an amenable number.

27479670628245 is a deficient number, since it is larger than the sum of its proper divisors (21787246216299).

27479670628245 is a wasteful number, since it uses less digits than its factorization.

27479670628245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29948642.

The product of its (nonzero) digits is 568995840, while the sum is 69.

The spelling of 27479670628245 in words is "twenty-seven trillion, four hundred seventy-nine billion, six hundred seventy million, six hundred twenty-eight thousand, two hundred forty-five".