7840133975081 has 2 divisors, whose sum is σ = 7840133975082. Its totient is φ = 7840133975080.

The previous prime is 7840133975071. The next prime is 7840133975099. The reversal of 7840133975081 is 1805793310487.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5113477690000 + 2726656285081 = 2261300^2 + 1651259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7840133975081 is a prime.

It is a super-2 number, since 2×7840133975081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7840133975071) 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, 3920066987540 + 3920066987541.

It is an arithmetic number, because the mean of its divisors is an integer number (3920066987541).

Almost surely, 2^{7840133975081} is an apocalyptic number.

It is an amenable number.

7840133975081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7840133975081 is an equidigital number, since it uses as much as digits as its factorization.

7840133975081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 7840133975081 in words is "seven trillion, eight hundred forty billion, one hundred thirty-three million, nine hundred seventy-five thousand, eighty-one".