28793649000 has 128 divisors (see below), whose sum is σ = 89920396800. Its totient is φ = 7671110400.

The previous prime is 28793648993. The next prime is 28793649007. The reversal of 28793649000 is 94639782.

It is an interprime number because it is at equal distance from previous prime (28793648993) and next prime (28793649007).

It is not an unprimeable number, because it can be changed into a prime (28793649007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3707121 + ... + 3714879.

It is an arithmetic number, because the mean of its divisors is an integer number (702503100).

Almost surely, 2^28793649000 is an apocalyptic number.

28793649000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28793649000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44960198400).

28793649000 is an abundant number, since it is smaller than the sum of its proper divisors (61126747800).

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

28793649000 is a wasteful number, since it uses less digits than its factorization.

28793649000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9020 (or 9006 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 28793649000 in words is "twenty-eight billion, seven hundred ninety-three million, six hundred forty-nine thousand".