128546344797 has 16 divisors (see below), whose sum is σ = 188871912768. Its totient is φ = 77265780480.

The previous prime is 128546344793. The next prime is 128546344807. The reversal of 128546344797 is 797443645821.

It is not a de Polignac number, because 128546344797 - 2² = 128546344793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128546344797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128546344793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38324604 + ... + 38327957.

It is an arithmetic number, because the mean of its divisors is an integer number (11804494548).

Almost surely, 2^128546344797 is an apocalyptic number.

It is an amenable number.

128546344797 is a deficient number, since it is larger than the sum of its proper divisors (60325567971).

128546344797 is a wasteful number, since it uses less digits than its factorization.

128546344797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76652620.

The product of its digits is 40642560, while the sum is 60.

The spelling of 128546344797 in words is "one hundred twenty-eight billion, five hundred forty-six million, three hundred forty-four thousand, seven hundred ninety-seven".