63755775523 has 16 divisors (see below), whose sum is σ = 69787111680. Its totient is φ = 57763965600.

The previous prime is 63755775511. The next prime is 63755775541. The reversal of 63755775523 is 32557755736.

It is not a de Polignac number, because 63755775523 - 2⁵ = 63755775491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63755785523) 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 15 ways as a sum of consecutive naturals, for example, 4682161 + ... + 4695757.

It is an arithmetic number, because the mean of its divisors is an integer number (4361694480).

Almost surely, 2^63755775523 is an apocalyptic number.

63755775523 is a deficient number, since it is larger than the sum of its proper divisors (6031336157).

63755775523 is a wasteful number, since it uses less digits than its factorization.

63755775523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15018.

The product of its digits is 23152500, while the sum is 55.

The spelling of 63755775523 in words is "sixty-three billion, seven hundred fifty-five million, seven hundred seventy-five thousand, five hundred twenty-three".