5491804781 has 8 divisors (see below), whose sum is σ = 5515361280. Its totient is φ = 5468269072.

The previous prime is 5491804777. The next prime is 5491804789. The reversal of 5491804781 is 1874081945.

5491804781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5491804781 - 2² = 5491804777 is a prime.

It is a super-2 number, since 2×5491804781² = 60319839505228915922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491804789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753551 + ... + 760803.

It is an arithmetic number, because the mean of its divisors is an integer number (689420160).

Almost surely, 2^5491804781 is an apocalyptic number.

It is an amenable number.

5491804781 is a deficient number, since it is larger than the sum of its proper divisors (23556499).

5491804781 is a wasteful number, since it uses less digits than its factorization.

5491804781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10395.

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 5491804781 is about 74106.7121184040. The cubic root of 5491804781 is about 1764.2970052511.

The spelling of 5491804781 in words is "five billion, four hundred ninety-one million, eight hundred four thousand, seven hundred eighty-one".