28988832838 has 16 divisors (see below), whose sum is σ = 49773913344. Its totient is φ = 12404092680.

The previous prime is 28988832833. The next prime is 28988832839. The reversal of 28988832838 is 83823888982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28988832833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631920 + ... + 1649587.

It is an arithmetic number, because the mean of its divisors is an integer number (3110869584).

Almost surely, 2^28988832838 is an apocalyptic number.

28988832838 is a deficient number, since it is larger than the sum of its proper divisors (20785080506).

28988832838 is a wasteful number, since it uses less digits than its factorization.

28988832838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282147.

The product of its digits is 84934656, while the sum is 67.

The spelling of 28988832838 in words is "twenty-eight billion, nine hundred eighty-eight million, eight hundred thirty-two thousand, eight hundred thirty-eight".