47827122557 has 2 divisors, whose sum is σ = 47827122558. Its totient is φ = 47827122556.

The previous prime is 47827122547. The next prime is 47827122559. The reversal of 47827122557 is 75522172874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47763665401 + 63457156 = 218549^2 + 7966^2 .

It is a cyclic number.

It is not a de Polignac number, because 47827122557 - 2²⁸ = 47558687101 is a prime.

Together with 47827122559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47827122559) 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, 23913561278 + 23913561279.

It is an arithmetic number, because the mean of its divisors is an integer number (23913561279).

Almost surely, 2^47827122557 is an apocalyptic number.

It is an amenable number.

47827122557 is a deficient number, since it is larger than the sum of its proper divisors (1).

47827122557 is an equidigital number, since it uses as much as digits as its factorization.

47827122557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2195200, while the sum is 50.

The spelling of 47827122557 in words is "forty-seven billion, eight hundred twenty-seven million, one hundred twenty-two thousand, five hundred fifty-seven".