115773157813 has 2 divisors, whose sum is σ = 115773157814. Its totient is φ = 115773157812.

The previous prime is 115773157777. The next prime is 115773157831. The reversal of 115773157813 is 318751377511.

Together with next prime (115773157831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96352505649 + 19420652164 = 310407^2 + 139358^2 .

It is a cyclic number.

It is not a de Polignac number, because 115773157813 - 2³³ = 107183223221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115773157613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57886578906 + 57886578907.

It is an arithmetic number, because the mean of its divisors is an integer number (57886578907).

Almost surely, 2^115773157813 is an apocalyptic number.

It is an amenable number.

115773157813 is a deficient number, since it is larger than the sum of its proper divisors (1).

115773157813 is an equidigital number, since it uses as much as digits as its factorization.

115773157813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 617400, while the sum is 49.

The spelling of 115773157813 in words is "one hundred fifteen billion, seven hundred seventy-three million, one hundred fifty-seven thousand, eight hundred thirteen".