28320814382 has 32 divisors (see below), whose sum is σ = 51172750080. Its totient is φ = 11483484480.

The previous prime is 28320814337. The next prime is 28320814387. The reversal of 28320814382 is 28341802382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28320814387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132473 + ... + 272379.

It is an arithmetic number, because the mean of its divisors is an integer number (1599148440).

Almost surely, 2^28320814382 is an apocalyptic number.

28320814382 is a deficient number, since it is larger than the sum of its proper divisors (22851935698).

28320814382 is a wasteful number, since it uses less digits than its factorization.

28320814382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140696.

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 28320814382 in words is "twenty-eight billion, three hundred twenty million, eight hundred fourteen thousand, three hundred eighty-two".