10689439528 has 32 divisors (see below), whose sum is σ = 20244621600. Its totient is φ = 5290946752.

The previous prime is 10689439511. The next prime is 10689439529. The reversal of 10689439528 is 82593498601.

It is a super-2 number, since 2×10689439528² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10689439529) 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, 1459251 + ... + 1466557.

It is an arithmetic number, because the mean of its divisors is an integer number (632644425).

Almost surely, 2^10689439528 is an apocalyptic number.

It is an amenable number.

10689439528 is a deficient number, since it is larger than the sum of its proper divisors (9555182072).

10689439528 is a wasteful number, since it uses less digits than its factorization.

10689439528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9129 (or 9125 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 10689439528 in words is "ten billion, six hundred eighty-nine million, four hundred thirty-nine thousand, five hundred twenty-eight".