8556449376 has 48 divisors (see below), whose sum is σ = 23185225728. Its totient is φ = 2760144000.

The previous prime is 8556449371. The next prime is 8556449477. The reversal of 8556449376 is 6739446558.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8556449371) 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, 1434600 + ... + 1440551.

It is an arithmetic number, because the mean of its divisors is an integer number (483025536).

Almost surely, 2^8556449376 is an apocalyptic number.

It is an amenable number.

8556449376 is an abundant number, since it is smaller than the sum of its proper divisors (14628776352).

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

8556449376 is a wasteful number, since it uses less digits than its factorization.

8556449376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875195 (or 2875187 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 57.

The square root of 8556449376 is about 92501.0777018300. The cubic root of 8556449376 is about 2045.3353687066.

It can be divided in two parts, 85564 and 49376, that added together give a triangular number (134940 = T₅₁₉).

The spelling of 8556449376 in words is "eight billion, five hundred fifty-six million, four hundred forty-nine thousand, three hundred seventy-six".