28331813382 has 16 divisors (see below), whose sum is σ = 58195076592. Its totient is φ = 9188696160.

The previous prime is 28331813381. The next prime is 28331813417.

28331813382 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28331813381) 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, 63810169 + ... + 63810612.

It is an arithmetic number, because the mean of its divisors is an integer number (3637192287).

Almost surely, 2^28331813382 is an apocalyptic number.

28331813382 is an abundant number, since it is smaller than the sum of its proper divisors (29863263210).

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

28331813382 is a wasteful number, since it uses less digits than its factorization.

28331813382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127620823.

The product of its digits is 165888, while the sum is 42.

The spelling of 28331813382 in words is "twenty-eight billion, three hundred thirty-one million, eight hundred thirteen thousand, three hundred eighty-two".