5491288768 has 56 divisors (see below), whose sum is σ = 12463345152. Its totient is φ = 2351541504.

The previous prime is 5491288739. The next prime is 5491288799. The reversal of 5491288768 is 8678821945.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662055 + ... + 670297.

Almost surely, 2^5491288768 is an apocalyptic number.

It is an amenable number.

5491288768 is an abundant number, since it is smaller than the sum of its proper divisors (6972056384).

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

5491288768 is a wasteful number, since it uses less digits than its factorization.

5491288768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9749 (or 9739 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 58.

The square root of 5491288768 is about 74103.2304828879. The cubic root of 5491288768 is about 1764.2417454144.

The spelling of 5491288768 in words is "five billion, four hundred ninety-one million, two hundred eighty-eight thousand, seven hundred sixty-eight".