115943523961 has 2 divisors, whose sum is σ = 115943523962. Its totient is φ = 115943523960.

The previous prime is 115943523953. The next prime is 115943523991. The reversal of 115943523961 is 169325349511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101146261225 + 14797262736 = 318035^2 + 121644^2 .

It is a cyclic number.

It is not a de Polignac number, because 115943523961 - 2³ = 115943523953 is a prime.

It is a super-2 number, since 2×115943523961² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115943523901) 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, 57971761980 + 57971761981.

It is an arithmetic number, because the mean of its divisors is an integer number (57971761981).

Almost surely, 2^115943523961 is an apocalyptic number.

It is an amenable number.

115943523961 is a deficient number, since it is larger than the sum of its proper divisors (1).

115943523961 is an equidigital number, since it uses as much as digits as its factorization.

115943523961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 49.

The spelling of 115943523961 in words is "one hundred fifteen billion, nine hundred forty-three million, five hundred twenty-three thousand, nine hundred sixty-one".