47172455663 has 4 divisors (see below), whose sum is σ = 47174304768. Its totient is φ = 47170606560.

The previous prime is 47172455653. The next prime is 47172455677. The reversal of 47172455663 is 36655427174.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47172455663 - 2⁴ = 47172455647 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 (47172455623) 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, 885743 + ... + 937488.

It is an arithmetic number, because the mean of its divisors is an integer number (11793576192).

Almost surely, 2^47172455663 is an apocalyptic number.

47172455663 is a deficient number, since it is larger than the sum of its proper divisors (1849105).

47172455663 is a wasteful number, since it uses less digits than its factorization.

47172455663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849104.

The product of its digits is 4233600, while the sum is 50.

The spelling of 47172455663 in words is "forty-seven billion, one hundred seventy-two million, four hundred fifty-five thousand, six hundred sixty-three".