47375446817 has 2 divisors, whose sum is σ = 47375446818. Its totient is φ = 47375446816.

The previous prime is 47375446787. The next prime is 47375446901. The reversal of 47375446817 is 71864457374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31074285841 + 16301160976 = 176279^2 + 127676^2 .

It is a cyclic number.

It is not a de Polignac number, because 47375446817 - 2⁶ = 47375446753 is a prime.

It is a super-2 number, since 2×47375446817² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47375440817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23687723408 + 23687723409.

It is an arithmetic number, because the mean of its divisors is an integer number (23687723409).

Almost surely, 2^47375446817 is an apocalyptic number.

It is an amenable number.

47375446817 is a deficient number, since it is larger than the sum of its proper divisors (1).

47375446817 is an equidigital number, since it uses as much as digits as its factorization.

47375446817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15805440, while the sum is 56.

The spelling of 47375446817 in words is "forty-seven billion, three hundred seventy-five million, four hundred forty-six thousand, eight hundred seventeen".