47744526481 has 2 divisors, whose sum is σ = 47744526482. Its totient is φ = 47744526480.

The previous prime is 47744526463. The next prime is 47744526493. The reversal of 47744526481 is 18462544774.

47744526481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41212654081 + 6531872400 = 203009^2 + 80820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47744526481 is a prime.

It is a super-2 number, since 2×47744526481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47744521481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23872263240 + 23872263241.

It is an arithmetic number, because the mean of its divisors is an integer number (23872263241).

Almost surely, 2^47744526481 is an apocalyptic number.

It is an amenable number.

47744526481 is a deficient number, since it is larger than the sum of its proper divisors (1).

47744526481 is an equidigital number, since it uses as much as digits as its factorization.

47744526481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6021120, while the sum is 52.

The spelling of 47744526481 in words is "forty-seven billion, seven hundred forty-four million, five hundred twenty-six thousand, four hundred eighty-one".