6755998813 has 2 divisors, whose sum is σ = 6755998814. Its totient is φ = 6755998812.

The previous prime is 6755998787. The next prime is 6755998961. The reversal of 6755998813 is 3188995576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6078073444 + 677925369 = 77962^2 + 26037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6755998813 is a prime.

It is a super-2 number, since 2×6755998813² = 91287039922514817938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6755998013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3377999406 + 3377999407.

It is an arithmetic number, because the mean of its divisors is an integer number (3377999407).

Almost surely, 2^6755998813 is an apocalyptic number.

It is an amenable number.

6755998813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6755998813 is an equidigital number, since it uses as much as digits as its factorization.

6755998813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16329600, while the sum is 61.

The square root of 6755998813 is about 82194.8831314943. The cubic root of 6755998813 is about 1890.4412632056.

The spelling of 6755998813 in words is "six billion, seven hundred fifty-five million, nine hundred ninety-eight thousand, eight hundred thirteen".