47717946931 has 2 divisors, whose sum is σ = 47717946932. Its totient is φ = 47717946930.

The previous prime is 47717946907. The next prime is 47717946961. The reversal of 47717946931 is 13964971774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47717946931 - 2²⁷ = 47583729203 is a prime.

It is a super-2 number, since 2×47717946931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47717946961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23858973465 + 23858973466.

It is an arithmetic number, because the mean of its divisors is an integer number (23858973466).

Almost surely, 2^47717946931 is an apocalyptic number.

47717946931 is a deficient number, since it is larger than the sum of its proper divisors (1).

47717946931 is an equidigital number, since it uses as much as digits as its factorization.

47717946931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8001504, while the sum is 58.

The spelling of 47717946931 in words is "forty-seven billion, seven hundred seventeen million, nine hundred forty-six thousand, nine hundred thirty-one".