47648121481 has 2 divisors, whose sum is σ = 47648121482. Its totient is φ = 47648121480.

The previous prime is 47648121467. The next prime is 47648121523. The reversal of 47648121481 is 18412184674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28847324025 + 18800797456 = 169845^2 + 137116^2 .

It is a cyclic number.

It is not a de Polignac number, because 47648121481 - 2⁵ = 47648121449 is a prime.

It is a super-2 number, since 2×47648121481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47648121431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23824060740 + 23824060741.

It is an arithmetic number, because the mean of its divisors is an integer number (23824060741).

Almost surely, 2^47648121481 is an apocalyptic number.

It is an amenable number.

47648121481 is a deficient number, since it is larger than the sum of its proper divisors (1).

47648121481 is an equidigital number, since it uses as much as digits as its factorization.

47648121481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 46.

The spelling of 47648121481 in words is "forty-seven billion, six hundred forty-eight million, one hundred twenty-one thousand, four hundred eighty-one".