8009720454 has 16 divisors (see below), whose sum is σ = 16238886192. Its totient is φ = 2633332608.

The previous prime is 8009720443. The next prime is 8009720497. The reversal of 8009720454 is 4540279008.

It is a super-2 number, since 2×8009720454² (a number of 21 digits) contains 22 as substring.

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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9143079 + ... + 9143954.

It is an arithmetic number, because the mean of its divisors is an integer number (1014930387).

Almost surely, 2^8009720454 is an apocalyptic number.

8009720454 is an abundant number, since it is smaller than the sum of its proper divisors (8229165738).

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

8009720454 is a wasteful number, since it uses less digits than its factorization.

8009720454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18287111.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 8009720454 is about 89497.0415935633. The cubic root of 8009720454 is about 2000.8097099740.

The spelling of 8009720454 in words is "eight billion, nine million, seven hundred twenty thousand, four hundred fifty-four".