47164668493 has 2 divisors, whose sum is σ = 47164668494. Its totient is φ = 47164668492.

The previous prime is 47164668413. The next prime is 47164668541. The reversal of 47164668493 is 39486646174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35275601124 + 11889067369 = 187818^2 + 109037^2 .

It is a cyclic number.

It is not a de Polignac number, because 47164668493 - 2²¹ = 47162571341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47164668413) 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, 23582334246 + 23582334247.

It is an arithmetic number, because the mean of its divisors is an integer number (23582334247).

Almost surely, 2^47164668493 is an apocalyptic number.

It is an amenable number.

47164668493 is a deficient number, since it is larger than the sum of its proper divisors (1).

47164668493 is an equidigital number, since it uses as much as digits as its factorization.

47164668493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 58.

The spelling of 47164668493 in words is "forty-seven billion, one hundred sixty-four million, six hundred sixty-eight thousand, four hundred ninety-three".