1157794825309 has 2 divisors, whose sum is σ = 1157794825310. Its totient is φ = 1157794825308.

The previous prime is 1157794825289. The next prime is 1157794825331. The reversal of 1157794825309 is 9035284977511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985006625625 + 172788199684 = 992475^2 + 415678^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157794825309 - 2¹⁷ = 1157794694237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157794825399) 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, 578897412654 + 578897412655.

It is an arithmetic number, because the mean of its divisors is an integer number (578897412655).

Almost surely, 2^{1157794825309} is an apocalyptic number.

It is an amenable number.

1157794825309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157794825309 is an equidigital number, since it uses as much as digits as its factorization.

1157794825309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19051200, while the sum is 61.

The spelling of 1157794825309 in words is "one trillion, one hundred fifty-seven billion, seven hundred ninety-four million, eight hundred twenty-five thousand, three hundred nine".