115715400451481 has 2 divisors, whose sum is σ = 115715400451482. Its totient is φ = 115715400451480.

The previous prime is 115715400451447. The next prime is 115715400451513. The reversal of 115715400451481 is 184154004517511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86747969471881 + 28967430979600 = 9313859^2 + 5382140^2 .

It is a cyclic number.

It is not a de Polignac number, because 115715400451481 - 2³⁴ = 115698220582297 is a prime.

It is a super-2 number, since 2×115715400451481² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115715400651481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57857700225740 + 57857700225741.

It is an arithmetic number, because the mean of its divisors is an integer number (57857700225741).

Almost surely, 2^{115715400451481} is an apocalyptic number.

It is an amenable number.

115715400451481 is a deficient number, since it is larger than the sum of its proper divisors (1).

115715400451481 is an equidigital number, since it uses as much as digits as its factorization.

115715400451481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448000, while the sum is 47.

Adding to 115715400451481 its reverse (184154004517511), we get a palindrome (299869404968992).

The spelling of 115715400451481 in words is "one hundred fifteen trillion, seven hundred fifteen billion, four hundred million, four hundred fifty-one thousand, four hundred eighty-one".