47581865523601 has 2 divisors, whose sum is σ = 47581865523602. Its totient is φ = 47581865523600.

The previous prime is 47581865523529. The next prime is 47581865523653. The reversal of 47581865523601 is 10632556818574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47094235650576 + 487629873025 = 6862524^2 + 698305^2 .

It is a cyclic number.

It is not a de Polignac number, because 47581865523601 - 2⁷ = 47581865523473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47581865523601.

It is not a weakly prime, because it can be changed into another prime (47581865521601) 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, 23790932761800 + 23790932761801.

It is an arithmetic number, because the mean of its divisors is an integer number (23790932761801).

Almost surely, 2^{47581865523601} is an apocalyptic number.

It is an amenable number.

47581865523601 is a deficient number, since it is larger than the sum of its proper divisors (1).

47581865523601 is an equidigital number, since it uses as much as digits as its factorization.

47581865523601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384000, while the sum is 61.

The spelling of 47581865523601 in words is "forty-seven trillion, five hundred eighty-one billion, eight hundred sixty-five million, five hundred twenty-three thousand, six hundred one".