47656252817 has 2 divisors, whose sum is σ = 47656252818. Its totient is φ = 47656252816.

The previous prime is 47656252757. The next prime is 47656252823. The reversal of 47656252817 is 71825265674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29918274961 + 17737977856 = 172969^2 + 133184^2 .

It is a cyclic number.

It is not a de Polignac number, because 47656252817 - 2¹⁶ = 47656187281 is a prime.

It is a super-2 number, since 2×47656252817² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47656252837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23828126408 + 23828126409.

It is an arithmetic number, because the mean of its divisors is an integer number (23828126409).

Almost surely, 2^47656252817 is an apocalyptic number.

It is an amenable number.

47656252817 is a deficient number, since it is larger than the sum of its proper divisors (1).

47656252817 is an equidigital number, since it uses as much as digits as its factorization.

47656252817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5644800, while the sum is 53.

The spelling of 47656252817 in words is "forty-seven billion, six hundred fifty-six million, two hundred fifty-two thousand, eight hundred seventeen".