128477382911 has 8 divisors (see below), whose sum is σ = 129626574000. Its totient is φ = 127330744320.

The previous prime is 128477382857. The next prime is 128477382947. The reversal of 128477382911 is 119283774821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128477382911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128477382961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536936 + ... + 738413.

It is an arithmetic number, because the mean of its divisors is an integer number (16203321750).

Almost surely, 2^128477382911 is an apocalyptic number.

128477382911 is a deficient number, since it is larger than the sum of its proper divisors (1149191089).

128477382911 is a wasteful number, since it uses less digits than its factorization.

128477382911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276249.

The product of its digits is 1354752, while the sum is 53.

The spelling of 128477382911 in words is "one hundred twenty-eight billion, four hundred seventy-seven million, three hundred eighty-two thousand, nine hundred eleven".