5591402784 has 288 divisors, whose sum is σ = 18162144000. Its totient is φ = 1678060800.

The previous prime is 5591402759. The next prime is 5591402819. The reversal of 5591402784 is 4872041955.

5591402784 is a `hidden beast` number, since 559 + 14 + 0 + 2 + 7 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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 47 ways as a sum of consecutive naturals, for example, 11204967 + ... + 11205465.

It is an arithmetic number, because the mean of its divisors is an integer number (63063000).

Almost surely, 2^5591402784 is an apocalyptic number.

5591402784 is a gapful number since it is divisible by the number (54) 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 5591402784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9081072000).

5591402784 is an abundant number, since it is smaller than the sum of its proper divisors (12570741216).

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

5591402784 is a wasteful number, since it uses less digits than its factorization.

5591402784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 5591402784 is about 74775.6831062077. The cubic root of 5591402784 is about 1774.8987877487.

The spelling of 5591402784 in words is "five billion, five hundred ninety-one million, four hundred two thousand, seven hundred eighty-four".