8521909463 has 8 divisors (see below), whose sum is σ = 9020787600. Its totient is φ = 8036699328.

The previous prime is 8521909453. The next prime is 8521909471. The reversal of 8521909463 is 3649091258.

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-8521909463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8521909433) 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, 3415718 + ... + 3418211.

It is an arithmetic number, because the mean of its divisors is an integer number (1127598450).

Almost surely, 2^8521909463 is an apocalyptic number.

8521909463 is a deficient number, since it is larger than the sum of its proper divisors (498878137).

8521909463 is a wasteful number, since it uses less digits than its factorization.

8521909463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834001.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 8521909463 is about 92314.1888498187. The cubic root of 8521909463 is about 2042.5795146094.

The spelling of 8521909463 in words is "eight billion, five hundred twenty-one million, nine hundred nine thousand, four hundred sixty-three".