4491436728600 has 288 divisors, whose sum is σ = 15174263941200. Its totient is φ = 1190549606400.

The previous prime is 4491436728599. The next prime is 4491436728629. The reversal of 4491436728600 is 68276341944.

4491436728600 is a `hidden beast` number, since 4 + 4 + 9 + 1 + 4 + 3 + 6 + 7 + 28 + 600 = 666.

It is a Cunningham number, because it is equal to 2119301²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 211919604 + ... + 211940796.

Almost surely, 2^{4491436728600} is an apocalyptic number.

4491436728600 is a gapful number since it is divisible by the number (40) 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 4491436728600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7587131970600).

4491436728600 is an abundant number, since it is smaller than the sum of its proper divisors (10682827212600).

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

4491436728600 is a wasteful number, since it uses less digits than its factorization.

4491436728600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21915 (or 21903 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 4491436728600 in words is "four trillion, four hundred ninety-one billion, four hundred thirty-six million, seven hundred twenty-eight thousand, six hundred".