128546849713 has 4 divisors (see below), whose sum is σ = 129559029760. Its totient is φ = 127534669668.

The previous prime is 128546849663. The next prime is 128546849723. The reversal of 128546849713 is 317948645821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128546849713 is a prime.

It is a super-2 number, since 2×128546849713² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128546849723) 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, 506089833 + ... + 506090086.

It is an arithmetic number, because the mean of its divisors is an integer number (32389757440).

Almost surely, 2^128546849713 is an apocalyptic number.

It is an amenable number.

128546849713 is a deficient number, since it is larger than the sum of its proper divisors (1012180047).

128546849713 is a wasteful number, since it uses less digits than its factorization.

128546849713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012180046.

The product of its digits is 11612160, while the sum is 58.

The spelling of 128546849713 in words is "one hundred twenty-eight billion, five hundred forty-six million, eight hundred forty-nine thousand, seven hundred thirteen".