128434623574 has 8 divisors (see below), whose sum is σ = 192662608320. Its totient is φ = 64213754136.

The previous prime is 128434623553. The next prime is 128434623599. The reversal of 128434623574 is 475326434821.

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, 1733469 + ... + 1806040.

It is an arithmetic number, because the mean of its divisors is an integer number (24082826040).

Almost surely, 2^128434623574 is an apocalyptic number.

128434623574 is a deficient number, since it is larger than the sum of its proper divisors (64227984746).

128434623574 is a wasteful number, since it uses less digits than its factorization.

128434623574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557654.

The product of its digits is 3870720, while the sum is 49.

The spelling of 128434623574 in words is "one hundred twenty-eight billion, four hundred thirty-four million, six hundred twenty-three thousand, five hundred seventy-four".