28196364560 has 320 divisors, whose sum is σ = 86106488832. Its totient is φ = 8332443648.

The previous prime is 28196364527. The next prime is 28196364583. The reversal of 28196364560 is 6546369182.

It is a junction number, because it is equal to n+sod(n) for n = 28196364499 and 28196364508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16954289 + ... + 16955951.

Almost surely, 2^28196364560 is an apocalyptic number.

28196364560 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 28196364560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43053244416).

28196364560 is an abundant number, since it is smaller than the sum of its proper divisors (57910124272).

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

28196364560 is a wasteful number, since it uses less digits than its factorization.

28196364560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 28196364560 in words is "twenty-eight billion, one hundred ninety-six million, three hundred sixty-four thousand, five hundred sixty".