47181847423 has 2 divisors, whose sum is σ = 47181847424. Its totient is φ = 47181847422.

The previous prime is 47181847403. The next prime is 47181847441. The reversal of 47181847423 is 32474818174.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47181847423 - 2¹³ = 47181839231 is a prime.

It is a super-2 number, since 2×47181847423² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47181847403) 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 as a sum of consecutive naturals, namely, 23590923711 + 23590923712.

It is an arithmetic number, because the mean of its divisors is an integer number (23590923712).

Almost surely, 2^47181847423 is an apocalyptic number.

47181847423 is a deficient number, since it is larger than the sum of its proper divisors (1).

47181847423 is an equidigital number, since it uses as much as digits as its factorization.

47181847423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1204224, while the sum is 49.

The spelling of 47181847423 in words is "forty-seven billion, one hundred eighty-one million, eight hundred forty-seven thousand, four hundred twenty-three".