7822045811865 has 16 divisors (see below), whose sum is σ = 12644296737408. Its totient is φ = 4128749953536.

The previous prime is 7822045811819. The next prime is 7822045811917. The reversal of 7822045811865 is 5681185402287.

It is not a de Polignac number, because 7822045811865 - 2⁴⁰ = 6722534184089 is a prime.

It is a super-2 number, since 2×7822045811865² (a number of 27 digits) contains 22 as substring.

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, 2687986797 + ... + 2687989706.

It is an arithmetic number, because the mean of its divisors is an integer number (790268546088).

Almost surely, 2^{7822045811865} is an apocalyptic number.

It is an amenable number.

7822045811865 is a deficient number, since it is larger than the sum of its proper divisors (4822250925543).

7822045811865 is a wasteful number, since it uses less digits than its factorization.

7822045811865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375976608.

The product of its (nonzero) digits is 8601600, while the sum is 57.

The spelling of 7822045811865 in words is "seven trillion, eight hundred twenty-two billion, forty-five million, eight hundred eleven thousand, eight hundred sixty-five".