8495720409 has 16 divisors (see below), whose sum is σ = 12367134720. Its totient is φ = 5144870160.

The previous prime is 8495720377. The next prime is 8495720411. The reversal of 8495720409 is 9040275948.

8495720409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8495720409 - 2⁵ = 8495720377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8495720609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58437 + ... + 142850.

It is an arithmetic number, because the mean of its divisors is an integer number (772945920).

Almost surely, 2^8495720409 is an apocalyptic number.

It is an amenable number.

8495720409 is a deficient number, since it is larger than the sum of its proper divisors (3871414311).

8495720409 is a wasteful number, since it uses less digits than its factorization.

8495720409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202580.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 8495720409 is about 92172.2323099533. The cubic root of 8495720409 is about 2040.4849872953.

The spelling of 8495720409 in words is "eight billion, four hundred ninety-five million, seven hundred twenty thousand, four hundred nine".