5681241621 has 12 divisors (see below), whose sum is σ = 8952259680. Its totient is φ = 3443176680.

The previous prime is 5681241613. The next prime is 5681241641. The reversal of 5681241621 is 1261421865.

It is a happy number.

5681241621 is a `hidden beast` number, since 5 + 6 + 8 + 1 + 24 + 1 + 621 = 666.

It is not a de Polignac number, because 5681241621 - 2³ = 5681241613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681241641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28693041 + ... + 28693238.

It is an arithmetic number, because the mean of its divisors is an integer number (746021640).

Almost surely, 2^5681241621 is an apocalyptic number.

It is an amenable number.

5681241621 is a deficient number, since it is larger than the sum of its proper divisors (3271018059).

5681241621 is a wasteful number, since it uses less digits than its factorization.

5681241621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57386296 (or 57386293 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 5681241621 is about 75374.0115756087. The cubic root of 5681241621 is about 1784.3542790682.

The spelling of 5681241621 in words is "five billion, six hundred eighty-one million, two hundred forty-one thousand, six hundred twenty-one".