115897785543539 has 4 divisors (see below), whose sum is σ = 115897909758624. Its totient is φ = 115897661328456.

The previous prime is 115897785543523. The next prime is 115897785543599. The reversal of 115897785543539 is 935345587798511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115897785543539 - 2⁴ = 115897785543523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115897785543599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60697307 + ... + 62577620.

It is an arithmetic number, because the mean of its divisors is an integer number (28974477439656).

Almost surely, 2^{115897785543539} is an apocalyptic number.

115897785543539 is a deficient number, since it is larger than the sum of its proper divisors (124215085).

115897785543539 is an equidigital number, since it uses as much as digits as its factorization.

115897785543539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124215084.

The product of its digits is 5715360000, while the sum is 80.

The spelling of 115897785543539 in words is "one hundred fifteen trillion, eight hundred ninety-seven billion, seven hundred eighty-five million, five hundred forty-three thousand, five hundred thirty-nine".