128207677183 has 4 divisors (see below), whose sum is σ = 128739659488. Its totient is φ = 127675694880.

The previous prime is 128207677133. The next prime is 128207677231. The reversal of 128207677183 is 381776702821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 381776702821 = 797 ⋅479017193.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128207677183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128207677183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128207677123) 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, 265990791 + ... + 265991272.

It is an arithmetic number, because the mean of its divisors is an integer number (32184914872).

Almost surely, 2^128207677183 is an apocalyptic number.

128207677183 is a deficient number, since it is larger than the sum of its proper divisors (531982305).

128207677183 is an equidigital number, since it uses as much as digits as its factorization.

128207677183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531982304.

The product of its (nonzero) digits is 1580544, while the sum is 52.

The spelling of 128207677183 in words is "one hundred twenty-eight billion, two hundred seven million, six hundred seventy-seven thousand, one hundred eighty-three".