8257031648 has 96 divisors (see below), whose sum is σ = 18095482944. Its totient is φ = 3688824832.

The previous prime is 8257031639. The next prime is 8257031659. The reversal of 8257031648 is 8461307528.

It is a junction number, because it is equal to n+sod(n) for n = 8257031599 and 8257031608.

It is a congruent number.

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, 1711736 + ... + 1716552.

It is an arithmetic number, because the mean of its divisors is an integer number (188494614).

Almost surely, 2^8257031648 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 8257031648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9047741472).

8257031648 is an abundant number, since it is smaller than the sum of its proper divisors (9838451296).

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

8257031648 is a wasteful number, since it uses less digits than its factorization.

8257031648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004 (or 4996 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 8257031648 is about 90868.2103268244. The cubic root of 8257031648 is about 2021.1939195592.

The spelling of 8257031648 in words is "eight billion, two hundred fifty-seven million, thirty-one thousand, six hundred forty-eight".