47966005081 has 2 divisors, whose sum is σ = 47966005082. Its totient is φ = 47966005080.

The previous prime is 47966005067. The next prime is 47966005091. The reversal of 47966005081 is 18050066974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42625318681 + 5340686400 = 206459^2 + 73080^2 .

It is a cyclic number.

It is not a de Polignac number, because 47966005081 - 2¹³ = 47965996889 is a prime.

It is a super-2 number, since 2×47966005081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47966005091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23983002540 + 23983002541.

It is an arithmetic number, because the mean of its divisors is an integer number (23983002541).

Almost surely, 2^47966005081 is an apocalyptic number.

It is an amenable number.

47966005081 is a deficient number, since it is larger than the sum of its proper divisors (1).

47966005081 is an equidigital number, since it uses as much as digits as its factorization.

47966005081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 47966005081 in words is "forty-seven billion, nine hundred sixty-six million, five thousand, eighty-one".