28039797352 has 192 divisors, whose sum is σ = 68292403200. Its totient is φ = 10531762560.

The previous prime is 28039797347. The next prime is 28039797353. The reversal of 28039797352 is 25379793082.

It is a junction number, because it is equal to n+sod(n) for n = 28039797293 and 28039797302.

It is not an unprimeable number, because it can be changed into a prime (28039797353) 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 47 ways as a sum of consecutive naturals, for example, 17447733 + ... + 17449339.

It is an arithmetic number, because the mean of its divisors is an integer number (355689600).

Almost surely, 2^28039797352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28039797352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34146201600).

28039797352 is an abundant number, since it is smaller than the sum of its proper divisors (40252605848).

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

28039797352 is a wasteful number, since it uses less digits than its factorization.

28039797352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 28039797352 in words is "twenty-eight billion, thirty-nine million, seven hundred ninety-seven thousand, three hundred fifty-two".