128950246830 has 16 divisors (see below), whose sum is σ = 309480592464. Its totient is φ = 34386732480.

The previous prime is 128950246819. The next prime is 128950246837. The reversal of 128950246830 is 38642059821.

It is a self number, because there is not a number n which added to its sum of digits gives 128950246830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128950246837) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2149170751 + ... + 2149170810.

It is an arithmetic number, because the mean of its divisors is an integer number (19342537029).

Almost surely, 2^128950246830 is an apocalyptic number.

128950246830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128950246830 is an abundant number, since it is smaller than the sum of its proper divisors (180530345634).

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

128950246830 is a wasteful number, since it uses less digits than its factorization.

128950246830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298341571.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 128950246830 in words is "one hundred twenty-eight billion, nine hundred fifty million, two hundred forty-six thousand, eight hundred thirty".