7947447710401 has 2 divisors, whose sum is σ = 7947447710402. Its totient is φ = 7947447710400.

The previous prime is 7947447710357. The next prime is 7947447710441. The reversal of 7947447710401 is 1040177447497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4553746870401 + 3393700840000 = 2133951^2 + 1842200^2 .

It is an emirp because it is prime and its reverse (1040177447497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7947447710401 - 2²¹ = 7947445613249 is a prime.

It is not a weakly prime, because it can be changed into another prime (7947447710441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3973723855200 + 3973723855201.

It is an arithmetic number, because the mean of its divisors is an integer number (3973723855201).

Almost surely, 2^{7947447710401} is an apocalyptic number.

It is an amenable number.

7947447710401 is a deficient number, since it is larger than the sum of its proper divisors (1).

7947447710401 is an equidigital number, since it uses as much as digits as its factorization.

7947447710401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5531904, while the sum is 55.

The spelling of 7947447710401 in words is "seven trillion, nine hundred forty-seven billion, four hundred forty-seven million, seven hundred ten thousand, four hundred one".