115543478937599 has 4 divisors (see below), whose sum is σ = 116453270110464. Its totient is φ = 114633687764736.

The previous prime is 115543478937589. The next prime is 115543478937641. The reversal of 115543478937599 is 995739874345511.

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 115543478937599 - 2²⁴ = 115543462160383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115543478937589) 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, 454895586242 + ... + 454895586495.

It is an arithmetic number, because the mean of its divisors is an integer number (29113317527616).

Almost surely, 2^{115543478937599} is an apocalyptic number.

115543478937599 is a deficient number, since it is larger than the sum of its proper divisors (909791172865).

115543478937599 is an equidigital number, since it uses as much as digits as its factorization.

115543478937599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909791172864.

The product of its digits is 5143824000, while the sum is 80.

The spelling of 115543478937599 in words is "one hundred fifteen trillion, five hundred forty-three billion, four hundred seventy-eight million, nine hundred thirty-seven thousand, five hundred ninety-nine".