115765717537 has 2 divisors, whose sum is σ = 115765717538. Its totient is φ = 115765717536.

The previous prime is 115765717499. The next prime is 115765717559. The reversal of 115765717537 is 735717567511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74704369041 + 41061348496 = 273321^2 + 202636^2 .

It is a cyclic number.

It is not a de Polignac number, because 115765717537 - 2⁷ = 115765717409 is a prime.

It is not a weakly prime, because it can be changed into another prime (115765717637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57882858768 + 57882858769.

It is an arithmetic number, because the mean of its divisors is an integer number (57882858769).

Almost surely, 2^115765717537 is an apocalyptic number.

It is an amenable number.

115765717537 is a deficient number, since it is larger than the sum of its proper divisors (1).

115765717537 is an equidigital number, since it uses as much as digits as its factorization.

115765717537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5402250, while the sum is 55.

The spelling of 115765717537 in words is "one hundred fifteen billion, seven hundred sixty-five million, seven hundred seventeen thousand, five hundred thirty-seven".