5909720621 has 16 divisors (see below), whose sum is σ = 6884841600. Its totient is φ = 4968096768.

The previous prime is 5909720617. The next prime is 5909720633. The reversal of 5909720621 is 1260279095.

It is a cyclic number.

It is not a de Polignac number, because 5909720621 - 2² = 5909720617 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5909726621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59165 + ... + 123773.

It is an arithmetic number, because the mean of its divisors is an integer number (430302600).

Almost surely, 2^5909720621 is an apocalyptic number.

It is an amenable number.

5909720621 is a deficient number, since it is larger than the sum of its proper divisors (975120979).

5909720621 is a wasteful number, since it uses less digits than its factorization.

5909720621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64868.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 5909720621 is about 76874.7072904996. The cubic root of 5909720621 is about 1807.9606897706.

The spelling of 5909720621 in words is "five billion, nine hundred nine million, seven hundred twenty thousand, six hundred twenty-one".