6758398081 has 2 divisors, whose sum is σ = 6758398082. Its totient is φ = 6758398080.

The previous prime is 6758398069. The next prime is 6758398099. The reversal of 6758398081 is 1808938576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6758319681 + 78400 = 82209^2 + 280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6758398081 is a prime.

It is a super-2 number, since 2×6758398081² = 91351889242528965122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6758348081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3379199040 + 3379199041.

It is an arithmetic number, because the mean of its divisors is an integer number (3379199041).

Almost surely, 2^6758398081 is an apocalyptic number.

It is an amenable number.

6758398081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6758398081 is an equidigital number, since it uses as much as digits as its factorization.

6758398081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The square root of 6758398081 is about 82209.4768320539. The cubic root of 6758398081 is about 1890.6650218010.

The spelling of 6758398081 in words is "six billion, seven hundred fifty-eight million, three hundred ninety-eight thousand, eighty-one".