28813839948 has 72 divisors (see below), whose sum is σ = 79141637120. Its totient is φ = 8805581280.

The previous prime is 28813839941. The next prime is 28813839953. The reversal of 28813839948 is 84993831882.

It is not an unprimeable number, because it can be changed into a prime (28813839941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 658240 + ... + 700647.

Almost surely, 2^28813839948 is an apocalyptic number.

It is an amenable number.

28813839948 is an abundant number, since it is smaller than the sum of its proper divisors (50327797172).

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

28813839948 is a wasteful number, since it uses less digits than its factorization.

28813839948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358947 (or 1358942 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 63.

The spelling of 28813839948 in words is "twenty-eight billion, eight hundred thirteen million, eight hundred thirty-nine thousand, nine hundred forty-eight".