5491188477 has 8 divisors (see below), whose sum is σ = 8135094080. Its totient is φ = 3660792300.

The previous prime is 5491188457. The next prime is 5491188487. The reversal of 5491188477 is 7748811945.

5491188477 is a `hidden beast` number, since 5 + 4 + 91 + 1 + 88 + 477 = 666.

It is not a de Polignac number, because 5491188477 - 2⁶ = 5491188413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491188457) 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, 101688649 + ... + 101688702.

It is an arithmetic number, because the mean of its divisors is an integer number (1016886760).

Almost surely, 2^5491188477 is an apocalyptic number.

It is an amenable number.

5491188477 is a deficient number, since it is larger than the sum of its proper divisors (2643905603).

5491188477 is a wasteful number, since it uses less digits than its factorization.

5491188477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203377360 (or 203377354 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 5491188477 is about 74102.5537819042. The cubic root of 5491188477 is about 1764.2310048485.

The spelling of 5491188477 in words is "five billion, four hundred ninety-one million, one hundred eighty-eight thousand, four hundred seventy-seven".