128034837421829 has 32 divisors (see below), whose sum is σ = 139734618186240. Its totient is φ = 116610055473600.

The previous prime is 128034837421823. The next prime is 128034837421831. The reversal of 128034837421829 is 928124738430821.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-128034837421829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128034837421823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2142059714 + ... + 2142119484.

It is an arithmetic number, because the mean of its divisors is an integer number (4366706818320).

Almost surely, 2^{128034837421829} is an apocalyptic number.

It is an amenable number.

128034837421829 is a deficient number, since it is larger than the sum of its proper divisors (11699780764411).

128034837421829 is a wasteful number, since it uses less digits than its factorization.

128034837421829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67121.

The product of its (nonzero) digits is 37158912, while the sum is 62.

The spelling of 128034837421829 in words is "one hundred twenty-eight trillion, thirty-four billion, eight hundred thirty-seven million, four hundred twenty-one thousand, eight hundred twenty-nine".