128351867833342 has 8 divisors (see below), whose sum is σ = 200898575739216. Its totient is φ = 61385675920272.

The previous prime is 128351867833303. The next prime is 128351867833421. The reversal of 128351867833342 is 243338768153821.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395128998143 + ... + 1395128998234.

It is an arithmetic number, because the mean of its divisors is an integer number (25112321967402).

Almost surely, 2^{128351867833342} is an apocalyptic number.

128351867833342 is a deficient number, since it is larger than the sum of its proper divisors (72546707905874).

128351867833342 is a wasteful number, since it uses less digits than its factorization.

128351867833342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790257996402.

The product of its digits is 139345920, while the sum is 64.

The spelling of 128351867833342 in words is "one hundred twenty-eight trillion, three hundred fifty-one billion, eight hundred sixty-seven million, eight hundred thirty-three thousand, three hundred forty-two".