47540403217 has 2 divisors, whose sum is σ = 47540403218. Its totient is φ = 47540403216.

The previous prime is 47540403199. The next prime is 47540403223. The reversal of 47540403217 is 71230404574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46536844176 + 1003559041 = 215724^2 + 31679^2 .

It is a cyclic number.

It is not a de Polignac number, because 47540403217 - 2⁷ = 47540403089 is a prime.

It is not a weakly prime, because it can be changed into another prime (47540403257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23770201608 + 23770201609.

It is an arithmetic number, because the mean of its divisors is an integer number (23770201609).

Almost surely, 2^47540403217 is an apocalyptic number.

It is an amenable number.

47540403217 is a deficient number, since it is larger than the sum of its proper divisors (1).

47540403217 is an equidigital number, since it uses as much as digits as its factorization.

47540403217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 47540403217 in words is "forty-seven billion, five hundred forty million, four hundred three thousand, two hundred seventeen".