27805936455 has 192 divisors, whose sum is σ = 56310059520. Its totient is φ = 12565324800.

The previous prime is 27805936453. The next prime is 27805936469. The reversal of 27805936455 is 55463950872.

27805936455 is a `hidden beast` number, since 2 + 7 + 8 + 0 + 593 + 6 + 45 + 5 = 666.

It is not a de Polignac number, because 27805936455 - 2¹ = 27805936453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27805936453) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 66047145 + ... + 66047565.

It is an arithmetic number, because the mean of its divisors is an integer number (293281560).

Almost surely, 2^27805936455 is an apocalyptic number.

27805936455 is an abundant number, since it is smaller than the sum of its proper divisors (28504123065).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27805936455 is a wasteful number, since it uses less digits than its factorization.

27805936455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 27805936455 in words is "twenty-seven billion, eight hundred five million, nine hundred thirty-six thousand, four hundred fifty-five".