115399999999 has 4 divisors (see below), whose sum is σ = 115903930360. Its totient is φ = 114896069640.

The previous prime is 115399999963. The next prime is 115400000017. The reversal of 115399999999 is 999999993511.

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 115399999999 - 2¹³ = 115399991807 is a prime.

It is a Duffinian number.

115399999999 is a modest number, since divided by 999999 gives 115399 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115399999919) 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, 251964837 + ... + 251965294.

It is an arithmetic number, because the mean of its divisors is an integer number (28975982590).

Almost surely, 2^115399999999 is an apocalyptic number.

115399999999 is a deficient number, since it is larger than the sum of its proper divisors (503930361).

115399999999 is an equidigital number, since it uses as much as digits as its factorization.

115399999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503930360.

The product of its digits is 645700815, while the sum is 82.

The spelling of 115399999999 in words is "one hundred fifteen billion, three hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".