5475721680641 has 2 divisors, whose sum is σ = 5475721680642. Its totient is φ = 5475721680640.

The previous prime is 5475721680631. The next prime is 5475721680707. The reversal of 5475721680641 is 1460861275745.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4697206628416 + 778515052225 = 2167304^2 + 882335^2 .

It is a cyclic number.

It is not a de Polignac number, because 5475721680641 - 2⁶ = 5475721680577 is a prime.

It is not a weakly prime, because it can be changed into another prime (5475721680631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2737860840320 + 2737860840321.

It is an arithmetic number, because the mean of its divisors is an integer number (2737860840321).

Almost surely, 2^{5475721680641} is an apocalyptic number.

It is an amenable number.

5475721680641 is a deficient number, since it is larger than the sum of its proper divisors (1).

5475721680641 is an equidigital number, since it uses as much as digits as its factorization.

5475721680641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 5475721680641 in words is "five trillion, four hundred seventy-five billion, seven hundred twenty-one million, six hundred eighty thousand, six hundred forty-one".