5491111654 has 16 divisors (see below), whose sum is σ = 9716990976. Its totient is φ = 2277419400.

The previous prime is 5491111649. The next prime is 5491111657. The reversal of 5491111654 is 4561111945.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491111657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6325732 + ... + 6326599.

It is an arithmetic number, because the mean of its divisors is an integer number (607311936).

Almost surely, 2^5491111654 is an apocalyptic number.

5491111654 is a deficient number, since it is larger than the sum of its proper divisors (4225879322).

5491111654 is a wasteful number, since it uses less digits than its factorization.

5491111654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12652371.

The product of its digits is 21600, while the sum is 37.

The square root of 5491111654 is about 74102.0354241366. The cubic root of 5491111654 is about 1764.2227774766. Note that the first 3 decimals are identical.

The spelling of 5491111654 in words is "five billion, four hundred ninety-one million, one hundred eleven thousand, six hundred fifty-four".