128493235302 has 32 divisors (see below), whose sum is σ = 286424553600. Its totient is φ = 38189939328.

The previous prime is 128493235229. The next prime is 128493235303. The reversal of 128493235302 is 203532394821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128493235303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33149052 + ... + 33152927.

It is an arithmetic number, because the mean of its divisors is an integer number (8950767300).

Almost surely, 2^128493235302 is an apocalyptic number.

128493235302 is an abundant number, since it is smaller than the sum of its proper divisors (157931318298).

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

128493235302 is a wasteful number, since it uses less digits than its factorization.

128493235302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66302020.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 128493235302 in words is "one hundred twenty-eight billion, four hundred ninety-three million, two hundred thirty-five thousand, three hundred two".