115112770728 has 16 divisors (see below), whose sum is σ = 287781926880. Its totient is φ = 38370923568.

The previous prime is 115112770727. The next prime is 115112770733. The reversal of 115112770728 is 827077211511.

It is a super-3 number, since 3×115112770728³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115112770728.

It is not an unprimeable number, because it can be changed into a prime (115112770727) 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, 2398182700 + ... + 2398182747.

It is an arithmetic number, because the mean of its divisors is an integer number (17986370430).

Almost surely, 2^115112770728 is an apocalyptic number.

It is an amenable number.

115112770728 is an abundant number, since it is smaller than the sum of its proper divisors (172669156152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115112770728 is a wasteful number, since it uses less digits than its factorization.

115112770728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796365456 (or 4796365452 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 42.

The spelling of 115112770728 in words is "one hundred fifteen billion, one hundred twelve million, seven hundred seventy thousand, seven hundred twenty-eight".