47172058191 has 6 divisors (see below), whose sum is σ = 68137417400. Its totient is φ = 31448038788.

The previous prime is 47172058147. The next prime is 47172058217. The reversal of 47172058191 is 19185027174.

It is a happy number.

47172058191 is a `hidden beast` number, since 47 + 1 + 7 + 20 + 581 + 9 + 1 = 666.

It is not a de Polignac number, because 47172058191 - 2⁹ = 47172057679 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 (47172058091) 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 5 ways as a sum of consecutive naturals, for example, 2620669891 + ... + 2620669908.

Almost surely, 2^47172058191 is an apocalyptic number.

47172058191 is a deficient number, since it is larger than the sum of its proper divisors (20965359209).

47172058191 is a wasteful number, since it uses less digits than its factorization.

47172058191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5241339805 (or 5241339802 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 47172058191 in words is "forty-seven billion, one hundred seventy-two million, fifty-eight thousand, one hundred ninety-one".