5509641672 has 24 divisors (see below), whose sum is σ = 14921946390. Its totient is φ = 1836547200.

The previous prime is 5509641671. The next prime is 5509641691. The reversal of 5509641672 is 2761469055.

5509641672 is a `hidden beast` number, since 5 + 509 + 64 + 16 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5219484516 + 290157156 = 72246^2 + 17034^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (5509641671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38261329 + ... + 38261472.

Almost surely, 2^5509641672 is an apocalyptic number.

It is an amenable number.

5509641672 is an abundant number, since it is smaller than the sum of its proper divisors (9412304718).

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

5509641672 is a wasteful number, since it uses less digits than its factorization.

5509641672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76522813 (or 76522806 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 5509641672 is about 74226.9605466908. The cubic root of 5509641672 is about 1766.2050340231.

The spelling of 5509641672 in words is "five billion, five hundred nine million, six hundred forty-one thousand, six hundred seventy-two".