47117622887 has 4 divisors (see below), whose sum is σ = 47121285216. Its totient is φ = 47113960560.

The previous prime is 47117622869. The next prime is 47117622911. The reversal of 47117622887 is 78822671174.

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 47117622887 - 2⁶ = 47117622823 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 (47117612887) 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, 1811798 + ... + 1837619.

It is an arithmetic number, because the mean of its divisors is an integer number (11780321304).

Almost surely, 2^47117622887 is an apocalyptic number.

47117622887 is a deficient number, since it is larger than the sum of its proper divisors (3662329).

47117622887 is a wasteful number, since it uses less digits than its factorization.

47117622887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662328.

The product of its digits is 2107392, while the sum is 53.

The spelling of 47117622887 in words is "forty-seven billion, one hundred seventeen million, six hundred twenty-two thousand, eight hundred eighty-seven".