10128729750 has 64 divisors (see below), whose sum is σ = 25695873216. Its totient is φ = 2656704000.

The previous prime is 10128729713. The next prime is 10128729803. The reversal of 10128729750 is 5792782101.

10128729750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 64947 + ... + 156446.

It is an arithmetic number, because the mean of its divisors is an integer number (401498019).

Almost surely, 2^10128729750 is an apocalyptic number.

10128729750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10128729750 is an abundant number, since it is smaller than the sum of its proper divisors (15567143466).

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

10128729750 is a wasteful number, since it uses less digits than its factorization.

10128729750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221474 (or 221464 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 42.

The spelling of 10128729750 in words is "ten billion, one hundred twenty-eight million, seven hundred twenty-nine thousand, seven hundred fifty".