47727424397 has 2 divisors, whose sum is σ = 47727424398. Its totient is φ = 47727424396.

The previous prime is 47727424379. The next prime is 47727424421. The reversal of 47727424397 is 79342472774.

Together with previous prime (47727424379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27228630121 + 20498794276 = 165011^2 + 143174^2 .

It is a cyclic number.

It is not a de Polignac number, because 47727424397 - 2²⁴ = 47710647181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47727424307) 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, 23863712198 + 23863712199.

It is an arithmetic number, because the mean of its divisors is an integer number (23863712199).

Almost surely, 2^47727424397 is an apocalyptic number.

It is an amenable number.

47727424397 is a deficient number, since it is larger than the sum of its proper divisors (1).

47727424397 is an equidigital number, since it uses as much as digits as its factorization.

47727424397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16595712, while the sum is 56.

The spelling of 47727424397 in words is "forty-seven billion, seven hundred twenty-seven million, four hundred twenty-four thousand, three hundred ninety-seven".