47813845393 has 2 divisors, whose sum is σ = 47813845394. Its totient is φ = 47813845392.

The previous prime is 47813845349. The next prime is 47813845447. The reversal of 47813845393 is 39354831874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36426394449 + 11387450944 = 190857^2 + 106712^2 .

It is a cyclic number.

It is not a de Polignac number, because 47813845393 - 2¹⁷ = 47813714321 is a prime.

It is a super-2 number, since 2×47813845393² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47813845493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23906922696 + 23906922697.

It is an arithmetic number, because the mean of its divisors is an integer number (23906922697).

Almost surely, 2^47813845393 is an apocalyptic number.

It is an amenable number.

47813845393 is a deficient number, since it is larger than the sum of its proper divisors (1).

47813845393 is an equidigital number, since it uses as much as digits as its factorization.

47813845393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 55.

The spelling of 47813845393 in words is "forty-seven billion, eight hundred thirteen million, eight hundred forty-five thousand, three hundred ninety-three".