8312593640 has 64 divisors (see below), whose sum is σ = 20836645200. Its totient is φ = 2963423232.

The previous prime is 8312593609. The next prime is 8312593657. The reversal of 8312593640 is 463952138.

It can be written as a sum of positive squares in 8 ways, for example, as 1110355684 + 7202237956 = 33322^2 + 84866^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260537 + ... + 290696.

Almost surely, 2^8312593640 is an apocalyptic number.

It is an amenable number.

8312593640 is an abundant number, since it is smaller than the sum of its proper divisors (12524051560).

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

8312593640 is a wasteful number, since it uses less digits than its factorization.

8312593640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551286 (or 551282 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 8312593640 is about 91173.4261723228. The cubic root of 8312593640 is about 2025.7173612472.

The spelling of 8312593640 in words is "eight billion, three hundred twelve million, five hundred ninety-three thousand, six hundred forty".