63138757223 has 4 divisors (see below), whose sum is σ = 63150841800. Its totient is φ = 63126672648.

The previous prime is 63138757219. The next prime is 63138757243. The reversal of 63138757223 is 32275783136.

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

It is a cyclic number.

It is not a de Polignac number, because 63138757223 - 2² = 63138757219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63138757243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6034448 + ... + 6044901.

It is an arithmetic number, because the mean of its divisors is an integer number (15787710450).

Almost surely, 2^63138757223 is an apocalyptic number.

63138757223 is a deficient number, since it is larger than the sum of its proper divisors (12084577).

63138757223 is a wasteful number, since it uses less digits than its factorization.

63138757223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12084576.

The product of its digits is 1270080, while the sum is 47.

The spelling of 63138757223 in words is "sixty-three billion, one hundred thirty-eight million, seven hundred fifty-seven thousand, two hundred twenty-three".