30128134750 has 32 divisors (see below), whose sum is σ = 64456996032. Its totient is φ = 10329645600.

The previous prime is 30128134747. The next prime is 30128134753. The reversal of 30128134750 is 5743182103.

It is an interprime number because it is at equal distance from previous prime (30128134747) and next prime (30128134753).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30128134753) 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 15 ways as a sum of consecutive naturals, for example, 8606289 + ... + 8609788.

It is an arithmetic number, because the mean of its divisors is an integer number (2014281126).

Almost surely, 2^30128134750 is an apocalyptic number.

30128134750 is an abundant number, since it is smaller than the sum of its proper divisors (34328861282).

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

30128134750 is a wasteful number, since it uses less digits than its factorization.

30128134750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216101 (or 17216091 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 30128134750 in words is "thirty billion, one hundred twenty-eight million, one hundred thirty-four thousand, seven hundred fifty".