28429669326 has 16 divisors (see below), whose sum is σ = 57075537024. Its totient is φ = 9440523384.

The previous prime is 28429669297. The next prime is 28429669327. The reversal of 28429669326 is 62396692482.

28429669326 = 84304² + 84305² + ... + 84307².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28429669327) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9006556 + ... + 9009711.

It is an arithmetic number, because the mean of its divisors is an integer number (3567221064).

Almost surely, 2^28429669326 is an apocalyptic number.

28429669326 is an abundant number, since it is smaller than the sum of its proper divisors (28645867698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28429669326 is a wasteful number, since it uses less digits than its factorization.

28429669326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18016535.

The product of its digits is 13436928, while the sum is 57.

The spelling of 28429669326 in words is "twenty-eight billion, four hundred twenty-nine million, six hundred sixty-nine thousand, three hundred twenty-six".