47175045857 has 2 divisors, whose sum is σ = 47175045858. Its totient is φ = 47175045856.

The previous prime is 47175045839. The next prime is 47175045887. The reversal of 47175045857 is 75854057174.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42830785936 + 4344259921 = 206956^2 + 65911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47175045857 is a prime.

It is a super-2 number, since 2×47175045857² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47175045799 and 47175045808.

It is not a weakly prime, because it can be changed into another prime (47175045887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23587522928 + 23587522929.

It is an arithmetic number, because the mean of its divisors is an integer number (23587522929).

Almost surely, 2^47175045857 is an apocalyptic number.

It is an amenable number.

47175045857 is a deficient number, since it is larger than the sum of its proper divisors (1).

47175045857 is an equidigital number, since it uses as much as digits as its factorization.

47175045857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5488000, while the sum is 53.

The spelling of 47175045857 in words is "forty-seven billion, one hundred seventy-five million, forty-five thousand, eight hundred fifty-seven".