47217458557 has 2 divisors, whose sum is σ = 47217458558. Its totient is φ = 47217458556.

The previous prime is 47217458549. The next prime is 47217458567. The reversal of 47217458557 is 75585471274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34459981956 + 12757476601 = 185634^2 + 112949^2 .

It is a cyclic number.

It is not a de Polignac number, because 47217458557 - 2³ = 47217458549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47217458498 and 47217458507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47217458507) 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, 23608729278 + 23608729279.

It is an arithmetic number, because the mean of its divisors is an integer number (23608729279).

Almost surely, 2^47217458557 is an apocalyptic number.

It is an amenable number.

47217458557 is a deficient number, since it is larger than the sum of its proper divisors (1).

47217458557 is an equidigital number, since it uses as much as digits as its factorization.

47217458557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10976000, while the sum is 55.

The spelling of 47217458557 in words is "forty-seven billion, two hundred seventeen million, four hundred fifty-eight thousand, five hundred fifty-seven".