47047474157 has 2 divisors, whose sum is σ = 47047474158. Its totient is φ = 47047474156.

The previous prime is 47047474141. The next prime is 47047474163. The reversal of 47047474157 is 75147474074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46392421321 + 655052836 = 215389^2 + 25594^2 .

It is a cyclic number.

It is not a de Polignac number, because 47047474157 - 2⁴ = 47047474141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47047474757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23523737078 + 23523737079.

It is an arithmetic number, because the mean of its divisors is an integer number (23523737079).

Almost surely, 2^47047474157 is an apocalyptic number.

It is an amenable number.

47047474157 is a deficient number, since it is larger than the sum of its proper divisors (1).

47047474157 is an equidigital number, since it uses as much as digits as its factorization.

47047474157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3073280, while the sum is 50.

The spelling of 47047474157 in words is "forty-seven billion, forty-seven million, four hundred seventy-four thousand, one hundred fifty-seven".