5083126781 has 2 divisors, whose sum is σ = 5083126782. Its totient is φ = 5083126780.

The previous prime is 5083126777. The next prime is 5083126883. The reversal of 5083126781 is 1876213805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3073039225 + 2010087556 = 55435^2 + 44834^2 .

It is a cyclic number.

It is not a de Polignac number, because 5083126781 - 2² = 5083126777 is a prime.

It is a super-2 number, since 2×5083126781² = 51676355743438843922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5083125781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2541563390 + 2541563391.

It is an arithmetic number, because the mean of its divisors is an integer number (2541563391).

Almost surely, 2^5083126781 is an apocalyptic number.

It is an amenable number.

5083126781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5083126781 is an equidigital number, since it uses as much as digits as its factorization.

5083126781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 5083126781 is about 71296.0502482431. The cubic root of 5083126781 is about 1719.4002304221.

The spelling of 5083126781 in words is "five billion, eighty-three million, one hundred twenty-six thousand, seven hundred eighty-one".