128606793834 has 8 divisors (see below), whose sum is σ = 257213587680. Its totient is φ = 42868931276.

The previous prime is 128606793737. The next prime is 128606793839. The reversal of 128606793834 is 438397606821.

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

128606793834 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (128606793839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10717232814 + ... + 10717232825.

It is an arithmetic number, because the mean of its divisors is an integer number (32151698460).

Almost surely, 2^128606793834 is an apocalyptic number.

128606793834 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.

128606793834 is a wasteful number, since it uses less digits than its factorization.

128606793834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21434465644.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 128606793834 in words is "one hundred twenty-eight billion, six hundred six million, seven hundred ninety-three thousand, eight hundred thirty-four".