47478841191 has 12 divisors (see below), whose sum is σ = 69209729160. Its totient is φ = 31362169680.

The previous prime is 47478841177. The next prime is 47478841219. The reversal of 47478841191 is 19114887474.

47478841191 is a `hidden beast` number, since 4 + 7 + 478 + 84 + 1 + 1 + 91 = 666.

It is not a de Polignac number, because 47478841191 - 2⁶ = 47478841127 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47474841191) 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 11 ways as a sum of consecutive naturals, for example, 24198225 + ... + 24200186.

It is an arithmetic number, because the mean of its divisors is an integer number (5767477430).

Almost surely, 2^47478841191 is an apocalyptic number.

47478841191 is a deficient number, since it is larger than the sum of its proper divisors (21730887969).

47478841191 is a wasteful number, since it uses less digits than its factorization.

47478841191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48398526 (or 48398523 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The spelling of 47478841191 in words is "forty-seven billion, four hundred seventy-eight million, eight hundred forty-one thousand, one hundred ninety-one".