6783375481 has 2 divisors, whose sum is σ = 6783375482. Its totient is φ = 6783375480.

The previous prime is 6783375437. The next prime is 6783375509. The reversal of 6783375481 is 1845733876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4239181881 + 2544193600 = 65109^2 + 50440^2 .

It is a cyclic number.

It is not a de Polignac number, because 6783375481 - 2¹¹ = 6783373433 is a prime.

It is a super-2 number, since 2×6783375481² = 92028365832463962722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6783373481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3391687740 + 3391687741.

It is an arithmetic number, because the mean of its divisors is an integer number (3391687741).

Almost surely, 2^6783375481 is an apocalyptic number.

It is an amenable number.

6783375481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6783375481 is an equidigital number, since it uses as much as digits as its factorization.

6783375481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 52.

The square root of 6783375481 is about 82361.2498751688. The cubic root of 6783375481 is about 1892.9913047989.

The spelling of 6783375481 in words is "six billion, seven hundred eighty-three million, three hundred seventy-five thousand, four hundred eighty-one".