115509189452 has 12 divisors (see below), whose sum is σ = 202182563520. Its totient is φ = 57742742736.

The previous prime is 115509189449. The next prime is 115509189569. The reversal of 115509189452 is 254981905511.

It is a self number, because there is not a number n which added to its sum of digits gives 115509189452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2941052 + ... + 2980067.

It is an arithmetic number, because the mean of its divisors is an integer number (16848546960).

Almost surely, 2^115509189452 is an apocalyptic number.

It is an amenable number.

115509189452 is a deficient number, since it is larger than the sum of its proper divisors (86673374068).

115509189452 is a wasteful number, since it uses less digits than its factorization.

115509189452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5926000 (or 5925998 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 50.

The spelling of 115509189452 in words is "one hundred fifteen billion, five hundred nine million, one hundred eighty-nine thousand, four hundred fifty-two".