115111051728 has 120 divisors (see below), whose sum is σ = 311241725088. Its totient is φ = 36657198336.

The previous prime is 115111051669. The next prime is 115111051793. The reversal of 115111051728 is 827150111511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25313551 + ... + 25318097.

Almost surely, 2^115111051728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115111051728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155620862544).

115111051728 is an abundant number, since it is smaller than the sum of its proper divisors (196130673360).

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

115111051728 is a wasteful number, since it uses less digits than its factorization.

115111051728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601 (or 5572 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 33.

The spelling of 115111051728 in words is "one hundred fifteen billion, one hundred eleven million, fifty-one thousand, seven hundred twenty-eight".