8469215520 has 96 divisors (see below), whose sum is σ = 26854934400. Its totient is φ = 2243481600.

The previous prime is 8469215483. The next prime is 8469215561. The reversal of 8469215520 is 255129648.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×8469215520² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14056 + ... + 130904.

It is an arithmetic number, because the mean of its divisors is an integer number (279738900).

Almost surely, 2^8469215520 is an apocalyptic number.

8469215520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8469215520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13427467200).

8469215520 is an abundant number, since it is smaller than the sum of its proper divisors (18385718880).

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

8469215520 is a wasteful number, since it uses less digits than its factorization.

8469215520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117018 (or 117010 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 8469215520 is about 92028.3408521527. The cubic root of 8469215520 is about 2038.3608131786.

The spelling of 8469215520 in words is "eight billion, four hundred sixty-nine million, two hundred fifteen thousand, five hundred twenty".