8263296856820 has 18 divisors (see below), whose sum is σ = 17352950396082. Its totient is φ = 3305313600496.

The previous prime is 8263296856819. The next prime is 8263296856831. The reversal of 8263296856820 is 286586923628.

It can be written as a sum of positive squares in only one way, i.e., 6610637485456 + 1652659371364 = 2571116^2 + 1285558^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12534191 + ... + 13176969.

Almost surely, 2^{8263296856820} is an apocalyptic number.

It is an amenable number.

8263296856820 is an abundant number, since it is smaller than the sum of its proper divisors (9089653539262).

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

8263296856820 is an frugal number, since it uses more digits than its factorization.

8263296856820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285567 (or 642786 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 65.

The spelling of 8263296856820 in words is "eight trillion, two hundred sixty-three billion, two hundred ninety-six million, eight hundred fifty-six thousand, eight hundred twenty".