6321450398513 has 2 divisors, whose sum is σ = 6321450398514. Its totient is φ = 6321450398512.

The previous prime is 6321450398447. The next prime is 6321450398563. The reversal of 6321450398513 is 3158930541236.

It is a happy number.

It is an a-pointer prime, because the next prime (6321450398563) can be obtained adding 6321450398513 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5654013685489 + 667436713024 = 2377817^2 + 816968^2 .

It is a cyclic number.

It is not a de Polignac number, because 6321450398513 - 2¹⁰ = 6321450397489 is a prime.

It is a super-2 number, since 2×6321450398513² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6321450398563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160725199256 + 3160725199257.

It is an arithmetic number, because the mean of its divisors is an integer number (3160725199257).

Almost surely, 2^{6321450398513} is an apocalyptic number.

It is an amenable number.

6321450398513 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321450398513 is an equidigital number, since it uses as much as digits as its factorization.

6321450398513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 6321450398513 in words is "six trillion, three hundred twenty-one billion, four hundred fifty million, three hundred ninety-eight thousand, five hundred thirteen".