63551800073 has 8 divisors (see below), whose sum is σ = 65020516992. Its totient is φ = 62087939536.

The previous prime is 63551800063. The next prime is 63551800127. The reversal of 63551800073 is 37000815536.

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

It is a cyclic number.

It is not a de Polignac number, because 63551800073 - 2¹² = 63551795977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63551800063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187615 + ... + 1239972.

It is an arithmetic number, because the mean of its divisors is an integer number (8127564624).

Almost surely, 2^63551800073 is an apocalyptic number.

It is an amenable number.

63551800073 is a deficient number, since it is larger than the sum of its proper divisors (1468716919).

63551800073 is a wasteful number, since it uses less digits than its factorization.

63551800073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428191.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 63551800073 in words is "sixty-three billion, five hundred fifty-one million, eight hundred thousand, seventy-three".