63993706045 has 8 divisors (see below), whose sum is σ = 77655284280. Its totient is φ = 50619740160.

The previous prime is 63993706027. The next prime is 63993706099. The reversal of 63993706045 is 54060739936.

It can be written as a sum of positive squares in 4 ways, for example, as 1384658521 + 62609047524 = 37211^2 + 250218^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63993706045 - 2¹¹ = 63993703997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63993705983 and 63993706001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71902596 + ... + 71903485.

It is an arithmetic number, because the mean of its divisors is an integer number (9706910535).

Almost surely, 2^63993706045 is an apocalyptic number.

It is an amenable number.

63993706045 is a deficient number, since it is larger than the sum of its proper divisors (13661578235).

63993706045 is a wasteful number, since it uses less digits than its factorization.

63993706045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143806175.

The product of its (nonzero) digits is 3674160, while the sum is 52.

The spelling of 63993706045 in words is "sixty-three billion, nine hundred ninety-three million, seven hundred six thousand, forty-five".