47573554891 has 2 divisors, whose sum is σ = 47573554892. Its totient is φ = 47573554890.

The previous prime is 47573554841. The next prime is 47573554907. The reversal of 47573554891 is 19845537574.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47573554891 is a prime.

It is not a weakly prime, because it can be changed into another prime (47573554811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23786777445 + 23786777446.

It is an arithmetic number, because the mean of its divisors is an integer number (23786777446).

Almost surely, 2^47573554891 is an apocalyptic number.

47573554891 is a deficient number, since it is larger than the sum of its proper divisors (1).

47573554891 is an equidigital number, since it uses as much as digits as its factorization.

47573554891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168000, while the sum is 58.

The spelling of 47573554891 in words is "forty-seven billion, five hundred seventy-three million, five hundred fifty-four thousand, eight hundred ninety-one".