128611144415 has 8 divisors (see below), whose sum is σ = 166205171328. Its totient is φ = 94974383520.

The previous prime is 128611144411. The next prime is 128611144469. The reversal of 128611144415 is 514441116821.

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

It is not a de Polignac number, because 128611144415 - 2² = 128611144411 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 (128611144411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989316431 + ... + 989316560.

It is an arithmetic number, because the mean of its divisors is an integer number (20775646416).

Almost surely, 2^128611144415 is an apocalyptic number.

128611144415 is a deficient number, since it is larger than the sum of its proper divisors (37594026913).

128611144415 is a wasteful number, since it uses less digits than its factorization.

128611144415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978633009.

The product of its digits is 30720, while the sum is 38.

The spelling of 128611144415 in words is "one hundred twenty-eight billion, six hundred eleven million, one hundred forty-four thousand, four hundred fifteen".