47385459493 has 2 divisors, whose sum is σ = 47385459494. Its totient is φ = 47385459492.

The previous prime is 47385459481. The next prime is 47385459521. The reversal of 47385459493 is 39495458374.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37573170244 + 9812289249 = 193838^2 + 99057^2 .

It is a cyclic number.

It is not a de Polignac number, because 47385459493 - 2²⁹ = 46848588581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47385459413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23692729746 + 23692729747.

It is an arithmetic number, because the mean of its divisors is an integer number (23692729747).

Almost surely, 2^47385459493 is an apocalyptic number.

It is an amenable number.

47385459493 is a deficient number, since it is larger than the sum of its proper divisors (1).

47385459493 is an equidigital number, since it uses as much as digits as its factorization.

47385459493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 61.

The spelling of 47385459493 in words is "forty-seven billion, three hundred eighty-five million, four hundred fifty-nine thousand, four hundred ninety-three".