6480631513 has 2 divisors, whose sum is σ = 6480631514. Its totient is φ = 6480631512.

The previous prime is 6480631459. The next prime is 6480631583. The reversal of 6480631513 is 3151360846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5364537049 + 1116094464 = 73243^2 + 33408^2 .

It is a cyclic number.

It is not a de Polignac number, because 6480631513 - 2¹³ = 6480623321 is a prime.

It is not a weakly prime, because it can be changed into another prime (6480631583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240315756 + 3240315757.

It is an arithmetic number, because the mean of its divisors is an integer number (3240315757).

Almost surely, 2^6480631513 is an apocalyptic number.

It is an amenable number.

6480631513 is a deficient number, since it is larger than the sum of its proper divisors (1).

6480631513 is an equidigital number, since it uses as much as digits as its factorization.

6480631513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 6480631513 is about 80502.3696110866. The cubic root of 6480631513 is about 1864.4000651149.

The spelling of 6480631513 in words is "six billion, four hundred eighty million, six hundred thirty-one thousand, five hundred thirteen".