63471620117 has 4 divisors (see below), whose sum is σ = 63520184256. Its totient is φ = 63423055980.

The previous prime is 63471620101. The next prime is 63471620123. The reversal of 63471620117 is 71102617436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63471620117 - 2⁴ = 63471620101 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 (63471620137) 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, 24280109 + ... + 24282722.

It is an arithmetic number, because the mean of its divisors is an integer number (15880046064).

Almost surely, 2^63471620117 is an apocalyptic number.

It is an amenable number.

63471620117 is a deficient number, since it is larger than the sum of its proper divisors (48564139).

63471620117 is a wasteful number, since it uses less digits than its factorization.

63471620117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48564138.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 63471620117 in words is "sixty-three billion, four hundred seventy-one million, six hundred twenty thousand, one hundred seventeen".