27780525063 has 24 divisors (see below), whose sum is σ = 40850082000. Its totient is φ = 18187471104.

The previous prime is 27780525053. The next prime is 27780525079. The reversal of 27780525063 is 36052508772.

27780525063 is a `hidden beast` number, since 27 + 78 + 0 + 52 + 506 + 3 = 666.

It is not a de Polignac number, because 27780525063 - 2¹⁶ = 27780459527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27780525053) 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, 492013 + ... + 545561.

It is an arithmetic number, because the mean of its divisors is an integer number (1702086750).

Almost surely, 2^27780525063 is an apocalyptic number.

27780525063 is a deficient number, since it is larger than the sum of its proper divisors (13069556937).

27780525063 is a wasteful number, since it uses less digits than its factorization.

27780525063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54591 (or 54588 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 27780525063 in words is "twenty-seven billion, seven hundred eighty million, five hundred twenty-five thousand, sixty-three".