63138750007 has 4 divisors (see below), whose sum is σ = 63139288240. Its totient is φ = 63138211776.

The previous prime is 63138749987. The next prime is 63138750083. The reversal of 63138750007 is 70005783136.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 63138750007 - 2¹⁹ = 63138225719 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 (63138759007) 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, 9978 + ... + 355495.

It is an arithmetic number, because the mean of its divisors is an integer number (15784822060).

Almost surely, 2^63138750007 is an apocalyptic number.

63138750007 is a deficient number, since it is larger than the sum of its proper divisors (538233).

63138750007 is a wasteful number, since it uses less digits than its factorization.

63138750007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538232.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 63138750007 in words is "sixty-three billion, one hundred thirty-eight million, seven hundred fifty thousand, seven".