128600690830 has 32 divisors (see below), whose sum is σ = 232022944800. Its totient is φ = 51320005632.

The previous prime is 128600690807. The next prime is 128600690833. The reversal of 128600690830 is 38096006821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128600690833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11980906 + ... + 11991634.

It is an arithmetic number, because the mean of its divisors is an integer number (7250717025).

Almost surely, 2^128600690830 is an apocalyptic number.

128600690830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128600690830 is a deficient number, since it is larger than the sum of its proper divisors (103422253970).

128600690830 is a wasteful number, since it uses less digits than its factorization.

128600690830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13428.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 128600690830 in words is "one hundred twenty-eight billion, six hundred million, six hundred ninety thousand, eight hundred thirty".