115718817541 has 2 divisors, whose sum is σ = 115718817542. Its totient is φ = 115718817540.

The previous prime is 115718817493. The next prime is 115718817559. The reversal of 115718817541 is 145718817511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91958136516 + 23760681025 = 303246^2 + 154145^2 .

It is a cyclic number.

It is not a de Polignac number, because 115718817541 - 2¹⁵ = 115718784773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115718827541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57859408770 + 57859408771.

It is an arithmetic number, because the mean of its divisors is an integer number (57859408771).

Almost surely, 2^115718817541 is an apocalyptic number.

It is an amenable number.

115718817541 is a deficient number, since it is larger than the sum of its proper divisors (1).

115718817541 is an equidigital number, since it uses as much as digits as its factorization.

115718817541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313600, while the sum is 49.

The spelling of 115718817541 in words is "one hundred fifteen billion, seven hundred eighteen million, eight hundred seventeen thousand, five hundred forty-one".