7831133376557 has 2 divisors, whose sum is σ = 7831133376558. Its totient is φ = 7831133376556.

The previous prime is 7831133376497. The next prime is 7831133376569. The reversal of 7831133376557 is 7556733311387.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7484131089796 + 347002286761 = 2735714^2 + 589069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7831133376557 is a prime.

It is a super-2 number, since 2×7831133376557² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7831133376496 and 7831133376505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7831133376457) 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, 3915566688278 + 3915566688279.

It is an arithmetic number, because the mean of its divisors is an integer number (3915566688279).

Almost surely, 2^{7831133376557} is an apocalyptic number.

It is an amenable number.

7831133376557 is a deficient number, since it is larger than the sum of its proper divisors (1).

7831133376557 is an equidigital number, since it uses as much as digits as its factorization.

7831133376557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33339600, while the sum is 59.

The spelling of 7831133376557 in words is "seven trillion, eight hundred thirty-one billion, one hundred thirty-three million, three hundred seventy-six thousand, five hundred fifty-seven".