47317445875729 has 2 divisors, whose sum is σ = 47317445875730. Its totient is φ = 47317445875728.

The previous prime is 47317445875723. The next prime is 47317445875853. The reversal of 47317445875729 is 92757854471374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30742589160000 + 16574856715729 = 5544600^2 + 4071223^2 .

It is a cyclic number.

It is not a de Polignac number, because 47317445875729 - 2¹¹ = 47317445873681 is a prime.

It is a super-2 number, since 2×47317445875729² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47317445875723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23658722937864 + 23658722937865.

It is an arithmetic number, because the mean of its divisors is an integer number (23658722937865).

Almost surely, 2^{47317445875729} is an apocalyptic number.

It is an amenable number.

47317445875729 is a deficient number, since it is larger than the sum of its proper divisors (1).

47317445875729 is an equidigital number, since it uses as much as digits as its factorization.

47317445875729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1659571200, while the sum is 73.

The spelling of 47317445875729 in words is "forty-seven trillion, three hundred seventeen billion, four hundred forty-five million, eight hundred seventy-five thousand, seven hundred twenty-nine".