47165124857 has 2 divisors, whose sum is σ = 47165124858. Its totient is φ = 47165124856.

The previous prime is 47165124841. The next prime is 47165124883. The reversal of 47165124857 is 75842156174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44345621056 + 2819503801 = 210584^2 + 53099^2 .

It is a cyclic number.

It is not a de Polignac number, because 47165124857 - 2⁴ = 47165124841 is a prime.

It is not a weakly prime, because it can be changed into another prime (47165124827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23582562428 + 23582562429.

It is an arithmetic number, because the mean of its divisors is an integer number (23582562429).

Almost surely, 2^47165124857 is an apocalyptic number.

It is an amenable number.

47165124857 is a deficient number, since it is larger than the sum of its proper divisors (1).

47165124857 is an equidigital number, since it uses as much as digits as its factorization.

47165124857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1881600, while the sum is 50.

The spelling of 47165124857 in words is "forty-seven billion, one hundred sixty-five million, one hundred twenty-four thousand, eight hundred fifty-seven".