63993600001 has 4 divisors (see below), whose sum is σ = 64325173252. Its totient is φ = 63662026752.

The previous prime is 63993599977. The next prime is 63993600019. The reversal of 63993600001 is 10000639936.

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 12310124401 + 51683475600 = 110951^2 + 227340^2 .

It is a cyclic number.

It is not a de Polignac number, because 63993600001 - 2⁹ = 63993599489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63993600031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165786336 + ... + 165786721.

It is an arithmetic number, because the mean of its divisors is an integer number (16081293313).

Almost surely, 2^63993600001 is an apocalyptic number.

It is an amenable number.

63993600001 is a deficient number, since it is larger than the sum of its proper divisors (331573251).

63993600001 is a wasteful number, since it uses less digits than its factorization.

63993600001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331573250.

The product of its (nonzero) digits is 26244, while the sum is 37.

The spelling of 63993600001 in words is "sixty-three billion, nine hundred ninety-three million, six hundred thousand, one".