63540126233 has 4 divisors (see below), whose sum is σ = 65257426980. Its totient is φ = 61822825488.

The previous prime is 63540126217. The next prime is 63540126239. The reversal of 63540126233 is 33262104536.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49090162969 + 14449963264 = 221563^2 + 120208^2 .

It is a cyclic number.

It is not a de Polignac number, because 63540126233 - 2⁴ = 63540126217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63540126193 and 63540126202.

It is not an unprimeable number, because it can be changed into a prime (63540126239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858650318 + ... + 858650391.

It is an arithmetic number, because the mean of its divisors is an integer number (16314356745).

Almost surely, 2^63540126233 is an apocalyptic number.

It is an amenable number.

63540126233 is a deficient number, since it is larger than the sum of its proper divisors (1717300747).

63540126233 is a wasteful number, since it uses less digits than its factorization.

63540126233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717300746.

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 63540126233 in words is "sixty-three billion, five hundred forty million, one hundred twenty-six thousand, two hundred thirty-three".