47144459797 has 2 divisors, whose sum is σ = 47144459798. Its totient is φ = 47144459796.

The previous prime is 47144459753. The next prime is 47144459801. The reversal of 47144459797 is 79795444174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42696370161 + 4448089636 = 206631^2 + 66694^2 .

It is a cyclic number.

It is not a de Polignac number, because 47144459797 - 2²³ = 47136071189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47144451797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23572229898 + 23572229899.

It is an arithmetic number, because the mean of its divisors is an integer number (23572229899).

Almost surely, 2^47144459797 is an apocalyptic number.

It is an amenable number.

47144459797 is a deficient number, since it is larger than the sum of its proper divisors (1).

47144459797 is an equidigital number, since it uses as much as digits as its factorization.

47144459797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35562240, while the sum is 61.

The spelling of 47144459797 in words is "forty-seven billion, one hundred forty-four million, four hundred fifty-nine thousand, seven hundred ninety-seven".