47004745805 has 4 divisors (see below), whose sum is σ = 56405694972. Its totient is φ = 37603796640.

The previous prime is 47004745769. The next prime is 47004745811. The reversal of 47004745805 is 50854740074.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19540964521 + 27463781284 = 139789^2 + 165722^2 .

It is not a de Polignac number, because 47004745805 - 2⁸ = 47004745549 is a prime.

It is a super-2 number, since 2×47004745805² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4700474576 + ... + 4700474585.

It is an arithmetic number, because the mean of its divisors is an integer number (14101423743).

Almost surely, 2^47004745805 is an apocalyptic number.

It is an amenable number.

47004745805 is a deficient number, since it is larger than the sum of its proper divisors (9400949167).

47004745805 is an equidigital number, since it uses as much as digits as its factorization.

47004745805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9400949166.

The product of its (nonzero) digits is 627200, while the sum is 44.

The spelling of 47004745805 in words is "forty-seven billion, four million, seven hundred forty-five thousand, eight hundred five".