5561177886 has 48 divisors (see below), whose sum is σ = 13239233280. Its totient is φ = 1673073360.

The previous prime is 5561177861. The next prime is 5561177891. The reversal of 5561177886 is 6887711655.

5561177886 is a `hidden beast` number, since 5 + 561 + 1 + 7 + 78 + 8 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 73510 + ... + 128553.

It is an arithmetic number, because the mean of its divisors is an integer number (275817360).

Almost surely, 2^5561177886 is an apocalyptic number.

5561177886 is an abundant number, since it is smaller than the sum of its proper divisors (7678055394).

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

5561177886 is a wasteful number, since it uses less digits than its factorization.

5561177886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202221 (or 202218 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 5561177886 is about 74573.3054517500. The cubic root of 5561177886 is about 1771.6948756325.

The spelling of 5561177886 in words is "five billion, five hundred sixty-one million, one hundred seventy-seven thousand, eight hundred eighty-six".