28011352600 has 96 divisors (see below), whose sum is σ = 81196588800. Its totient is φ = 8730806400.

The previous prime is 28011352549. The next prime is 28011352613. The reversal of 28011352600 is 625311082.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 894060 + ... + 924859.

It is an arithmetic number, because the mean of its divisors is an integer number (845797800).

Almost surely, 2^28011352600 is an apocalyptic number.

28011352600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28011352600 is an abundant number, since it is smaller than the sum of its proper divisors (53185236200).

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

28011352600 is a wasteful number, since it uses less digits than its factorization.

28011352600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818953 (or 1818944 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 28011352600 its reverse (625311082), we get a palindrome (28636663682).

The spelling of 28011352600 in words is "twenty-eight billion, eleven million, three hundred fifty-two thousand, six hundred".