115079691489 has 32 divisors (see below), whose sum is σ = 186044221440. Its totient is φ = 61768457472.

The previous prime is 115079691443. The next prime is 115079691491. The reversal of 115079691489 is 984196970511.

It is not a de Polignac number, because 115079691489 - 2⁷ = 115079691361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115079691289) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 140859 + ... + 500000.

It is an arithmetic number, because the mean of its divisors is an integer number (5813881920).

Almost surely, 2^115079691489 is an apocalyptic number.

It is an amenable number.

115079691489 is a deficient number, since it is larger than the sum of its proper divisors (70964529951).

115079691489 is a wasteful number, since it uses less digits than its factorization.

115079691489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641389.

The product of its (nonzero) digits is 4898880, while the sum is 60.

The spelling of 115079691489 in words is "one hundred fifteen billion, seventy-nine million, six hundred ninety-one thousand, four hundred eighty-nine".