27630263385 has 12 divisors (see below), whose sum is σ = 47892456612. Its totient is φ = 14736140448.

The previous prime is 27630263359. The next prime is 27630263399. The reversal of 27630263385 is 58336203672.

27630263385 is a `hidden beast` number, since 2 + 7 + 6 + 3 + 0 + 2 + 633 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5050092096 + 22580171289 = 71064^2 + 150267^2 .

It is not a de Polignac number, because 27630263385 - 2⁷ = 27630263257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 614005853 = 27630263385 / (2 + 7 + 6 + 3 + 0 + 2 + 6 + 3 + 3 + 8 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27630263385.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 307002882 + ... + 307002971.

It is an arithmetic number, because the mean of its divisors is an integer number (3991038051).

Almost surely, 2^27630263385 is an apocalyptic number.

It is an amenable number.

27630263385 is a deficient number, since it is larger than the sum of its proper divisors (20262193227).

27630263385 is a wasteful number, since it uses less digits than its factorization.

27630263385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614005864 (or 614005861 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 27630263385 in words is "twenty-seven billion, six hundred thirty million, two hundred sixty-three thousand, three hundred eighty-five".