8463156240 has 960 divisors, whose sum is σ = 36477665280. Its totient is φ = 1581465600.

The previous prime is 8463156239. The next prime is 8463156259. The reversal of 8463156240 is 426513648.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 107128521 + ... + 107128599.

It is an arithmetic number, because the mean of its divisors is an integer number (37997568).

Almost surely, 2^8463156240 is an apocalyptic number.

8463156240 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 8463156240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18238832640).

8463156240 is an abundant number, since it is smaller than the sum of its proper divisors (28014509040).

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

8463156240 is a wasteful number, since it uses less digits than its factorization.

8463156240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 8463156240 is about 91995.4142335367. The cubic root of 8463156240 is about 2037.8745837457.

Adding to 8463156240 its reverse (426513648), we get a palindrome (8889669888).

The spelling of 8463156240 in words is "eight billion, four hundred sixty-three million, one hundred fifty-six thousand, two hundred forty".