128955784930 has 64 divisors (see below), whose sum is σ = 278479503360. Its totient is φ = 42061924800.

The previous prime is 128955784889. The next prime is 128955784973. The reversal of 128955784930 is 39487559821.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 375586 + ... + 631645.

It is an arithmetic number, because the mean of its divisors is an integer number (4351242240).

Almost surely, 2^128955784930 is an apocalyptic number.

128955784930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128955784930 is an abundant number, since it is smaller than the sum of its proper divisors (149523718430).

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

128955784930 is a wasteful number, since it uses less digits than its factorization.

128955784930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007335.

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 128955784930 in words is "one hundred twenty-eight billion, nine hundred fifty-five million, seven hundred eighty-four thousand, nine hundred thirty".