491284483200 has 384 divisors, whose sum is σ = 2054819376000. Its totient is φ = 112293457920.

The previous prime is 491284483147. The next prime is 491284483231. The reversal of 491284483200 is 2384482194.

491284483200 is a `hidden beast` number, since 4 + 9 + 1 + 284 + 48 + 320 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 198646 + ... + 1010954.

It is an arithmetic number, because the mean of its divisors is an integer number (5351092125).

Almost surely, 2^491284483200 is an apocalyptic number.

491284483200 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 491284483200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027409688000).

491284483200 is an abundant number, since it is smaller than the sum of its proper divisors (1563534892800).

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

491284483200 is a wasteful number, since it uses less digits than its factorization.

491284483200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812349 (or 812326 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 491284483200 in words is "four hundred ninety-one billion, two hundred eighty-four million, four hundred eighty-three thousand, two hundred".