8256487424 has 88 divisors (see below), whose sum is σ = 17179865088. Its totient is φ = 3963617280.

The previous prime is 8256487409. The next prime is 8256487429. The reversal of 8256487424 is 4247846528.

Its product of digits (3440640) is a multiple of the sum of its prime divisors (160).

It is a nialpdrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8256487429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65011649 + ... + 65011775.

Almost surely, 2^8256487424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8256487424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8589932544).

8256487424 is an abundant number, since it is smaller than the sum of its proper divisors (8923377664).

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

8256487424 is an frugal number, since it uses more digits than its factorization.

8256487424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 160 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 50.

The square root of 8256487424 is about 90865.2156988581. The cubic root of 8256487424 is about 2021.1495127048.

The spelling of 8256487424 in words is "eight billion, two hundred fifty-six million, four hundred eighty-seven thousand, four hundred twenty-four".