47646535591 has 2 divisors, whose sum is σ = 47646535592. Its totient is φ = 47646535590.

The previous prime is 47646535583. The next prime is 47646535597. The reversal of 47646535591 is 19553564674.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47646535591 - 2³ = 47646535583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47646535597) 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, 23823267795 + 23823267796.

It is an arithmetic number, because the mean of its divisors is an integer number (23823267796).

Almost surely, 2^47646535591 is an apocalyptic number.

47646535591 is a deficient number, since it is larger than the sum of its proper divisors (1).

47646535591 is an equidigital number, since it uses as much as digits as its factorization.

47646535591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608000, while the sum is 55.

The spelling of 47646535591 in words is "forty-seven billion, six hundred forty-six million, five hundred thirty-five thousand, five hundred ninety-one".