8508709453 has 8 divisors (see below), whose sum is σ = 8614158840. Its totient is φ = 8403479040.

The previous prime is 8508709441. The next prime is 8508709481. The reversal of 8508709453 is 3549078058.

It can be written as a sum of positive squares in 4 ways, for example, as 391960804 + 8116748649 = 19798^2 + 90093^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8508709453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8508709397 and 8508709406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8508707453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24151 + ... + 132667.

It is an arithmetic number, because the mean of its divisors is an integer number (1076769855).

Almost surely, 2^8508709453 is an apocalyptic number.

It is an amenable number.

8508709453 is a deficient number, since it is larger than the sum of its proper divisors (105449387).

8508709453 is a wasteful number, since it uses less digits than its factorization.

8508709453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109487.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The square root of 8508709453 is about 92242.6661204022. Note that the first 3 decimals coincide. The cubic root of 8508709453 is about 2041.5243519101.

The spelling of 8508709453 in words is "eight billion, five hundred eight million, seven hundred nine thousand, four hundred fifty-three".