63023666813 has 4 divisors (see below), whose sum is σ = 63064513248. Its totient is φ = 62982820380.

The previous prime is 63023666803. The next prime is 63023666861. The reversal of 63023666813 is 31866632036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63023666813 - 2⁶ = 63023666749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63023666803) 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 3 ways as a sum of consecutive naturals, for example, 20420903 + ... + 20423988.

It is an arithmetic number, because the mean of its divisors is an integer number (15766128312).

Almost surely, 2^63023666813 is an apocalyptic number.

It is an amenable number.

63023666813 is a deficient number, since it is larger than the sum of its proper divisors (40846435).

63023666813 is a wasteful number, since it uses less digits than its factorization.

63023666813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40846434.

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 63023666813 in words is "sixty-three billion, twenty-three million, six hundred sixty-six thousand, eight hundred thirteen".