128650242342 has 8 divisors (see below), whose sum is σ = 257300484696. Its totient is φ = 42883414112.

The previous prime is 128650242323. The next prime is 128650242373. The reversal of 128650242342 is 243242056821.

It is a sphenic number, since it is the product of 3 distinct primes.

128650242342 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 128650242342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10720853523 + ... + 10720853534.

It is an arithmetic number, because the mean of its divisors is an integer number (32162560587).

Almost surely, 2^128650242342 is an apocalyptic number.

128650242342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128650242342 is a wasteful number, since it uses less digits than its factorization.

128650242342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21441707062.

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 128650242342 in words is "one hundred twenty-eight billion, six hundred fifty million, two hundred forty-two thousand, three hundred forty-two".