7689128735 has 12 divisors (see below), whose sum is σ = 9645571992. Its totient is φ = 5883853008.

The previous prime is 7689128669. The next prime is 7689128743. The reversal of 7689128735 is 5378219867.

It is not a de Polignac number, because 7689128735 - 2¹⁰ = 7689127711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1450877 + ... + 1456166.

It is an arithmetic number, because the mean of its divisors is an integer number (803797666).

Almost surely, 2^7689128735 is an apocalyptic number.

7689128735 is a deficient number, since it is larger than the sum of its proper divisors (1956443257).

7689128735 is a wasteful number, since it uses less digits than its factorization.

7689128735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907094 (or 2907071 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The square root of 7689128735 is about 87687.6772129357. The cubic root of 7689128735 is about 1973.7510650990.

The spelling of 7689128735 in words is "seven billion, six hundred eighty-nine million, one hundred twenty-eight thousand, seven hundred thirty-five".