6490413521641 has 9 divisors (see below), whose sum is σ = 7550093617149. Its totient is φ = 5563196304204.

The previous prime is 6490413521617. The next prime is 6490413521651. The reversal of 6490413521641 is 1461253140946.

The square root of 6490413521641 is 2547629.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 6490413521641 - 2⁵ = 6490413521609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6490413521591 and 6490413521600.

It is not an unprimeable number, because it can be changed into a prime (6490413521651) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17651430 + ... + 18015376.

Almost surely, 2^{6490413521641} is an apocalyptic number.

6490413521641 is the 2547629-th square number.

6490413521641 is the 1273815-th centered octagonal number.

It is an amenable number.

6490413521641 is a deficient number, since it is larger than the sum of its proper divisors (1059680095508).

6490413521641 is an frugal number, since it uses more digits than its factorization.

6490413521641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727908 (or 363954 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 6490413521641 in words is "six trillion, four hundred ninety billion, four hundred thirteen million, five hundred twenty-one thousand, six hundred forty-one".