6401658713 has 2 divisors, whose sum is σ = 6401658714. Its totient is φ = 6401658712.

The previous prime is 6401658709. The next prime is 6401658721. The reversal of 6401658713 is 3178561046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4864783504 + 1536875209 = 69748^2 + 39203^2 .

It is a cyclic number.

It is not a de Polignac number, because 6401658713 - 2² = 6401658709 is a prime.

It is not a weakly prime, because it can be changed into another prime (6401658743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200829356 + 3200829357.

It is an arithmetic number, because the mean of its divisors is an integer number (3200829357).

Almost surely, 2^6401658713 is an apocalyptic number.

It is an amenable number.

6401658713 is a deficient number, since it is larger than the sum of its proper divisors (1).

6401658713 is an equidigital number, since it uses as much as digits as its factorization.

6401658713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 6401658713 is about 80010.3662846259. The cubic root of 6401658713 is about 1856.7959167514.

The spelling of 6401658713 in words is "six billion, four hundred one million, six hundred fifty-eight thousand, seven hundred thirteen".