47546497891 has 2 divisors, whose sum is σ = 47546497892. Its totient is φ = 47546497890.

The previous prime is 47546497813. The next prime is 47546497913. The reversal of 47546497891 is 19879464574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47546497891 - 2¹⁵ = 47546465123 is a prime.

It is not a weakly prime, because it can be changed into another prime (47546495891) 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, 23773248945 + 23773248946.

It is an arithmetic number, because the mean of its divisors is an integer number (23773248946).

Almost surely, 2^47546497891 is an apocalyptic number.

47546497891 is a deficient number, since it is larger than the sum of its proper divisors (1).

47546497891 is an equidigital number, since it uses as much as digits as its factorization.

47546497891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60963840, while the sum is 64.

The spelling of 47546497891 in words is "forty-seven billion, five hundred forty-six million, four hundred ninety-seven thousand, eight hundred ninety-one".