128403738334 has 8 divisors (see below), whose sum is σ = 192676141368. Its totient is φ = 64178357880.

The previous prime is 128403738301. The next prime is 128403738439. The reversal of 128403738334 is 433837304821.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11748817 + ... + 11759740.

It is an arithmetic number, because the mean of its divisors is an integer number (24084517671).

Almost surely, 2^128403738334 is an apocalyptic number.

128403738334 is a deficient number, since it is larger than the sum of its proper divisors (64272403034).

128403738334 is a wasteful number, since it uses less digits than its factorization.

128403738334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23511290.

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 128403738334 in words is "one hundred twenty-eight billion, four hundred three million, seven hundred thirty-eight thousand, three hundred thirty-four".