63505761233 has 16 divisors (see below), whose sum is σ = 66662733312. Its totient is φ = 60419088000.

The previous prime is 63505761167. The next prime is 63505761257. The reversal of 63505761233 is 33216750536.

It is a happy number.

63505761233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63505761233 - 2⁸ = 63505760977 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63505721233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4306010 + ... + 4320732.

It is an arithmetic number, because the mean of its divisors is an integer number (4166420832).

Almost surely, 2^63505761233 is an apocalyptic number.

It is an amenable number.

63505761233 is a deficient number, since it is larger than the sum of its proper divisors (3156972079).

63505761233 is a wasteful number, since it uses less digits than its factorization.

63505761233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17096.

The product of its (nonzero) digits is 340200, while the sum is 41.

The spelling of 63505761233 in words is "sixty-three billion, five hundred five million, seven hundred sixty-one thousand, two hundred thirty-three".