8243947053069 has 32 divisors (see below), whose sum is σ = 13667997907200. Its totient is φ = 4303626135552.

The previous prime is 8243947053053. The next prime is 8243947053079. The reversal of 8243947053069 is 9603507493428.

It is not a de Polignac number, because 8243947053069 - 2⁴ = 8243947053053 is a prime.

It is a super-2 number, since 2×8243947053069² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8243947053079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155631294 + ... + 155684255.

It is an arithmetic number, because the mean of its divisors is an integer number (427124934600).

Almost surely, 2^{8243947053069} is an apocalyptic number.

It is an amenable number.

8243947053069 is a deficient number, since it is larger than the sum of its proper divisors (5424050854131).

8243947053069 is a wasteful number, since it uses less digits than its factorization.

8243947053069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311315669.

The product of its (nonzero) digits is 39191040, while the sum is 60.

The spelling of 8243947053069 in words is "eight trillion, two hundred forty-three billion, nine hundred forty-seven million, fifty-three thousand, sixty-nine".