47657554121 has 2 divisors, whose sum is σ = 47657554122. Its totient is φ = 47657554120.

The previous prime is 47657554097. The next prime is 47657554123. The reversal of 47657554121 is 12145575674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42022950025 + 5634604096 = 204995^2 + 75064^2 .

It is a cyclic number.

It is not a de Polignac number, because 47657554121 - 2¹⁸ = 47657291977 is a prime.

Together with 47657554123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47657554123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23828777060 + 23828777061.

It is an arithmetic number, because the mean of its divisors is an integer number (23828777061).

Almost surely, 2^47657554121 is an apocalyptic number.

It is an amenable number.

47657554121 is a deficient number, since it is larger than the sum of its proper divisors (1).

47657554121 is an equidigital number, since it uses as much as digits as its factorization.

47657554121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176000, while the sum is 47.

The spelling of 47657554121 in words is "forty-seven billion, six hundred fifty-seven million, five hundred fifty-four thousand, one hundred twenty-one".