7883224687861 has 6 divisors (see below), whose sum is σ = 8319968438262. Its totient is φ = 7468318125000.

The previous prime is 7883224687853. The next prime is 7883224687889. The reversal of 7883224687861 is 1687864223887.

It can be written as a sum of positive squares in only one way, i.e., 4176852750225 + 3706371937636 = 2043735^2 + 1925194^2 .

It is not a de Polignac number, because 7883224687861 - 2³ = 7883224687853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7883224687841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10918593390 + ... + 10918594111.

It is an arithmetic number, because the mean of its divisors is an integer number (1386661406377).

Almost surely, 2^{7883224687861} is an apocalyptic number.

It is an amenable number.

7883224687861 is a deficient number, since it is larger than the sum of its proper divisors (436743750401).

7883224687861 is a wasteful number, since it uses less digits than its factorization.

7883224687861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21837187539 (or 21837187520 counting only the distinct ones).

The product of its digits is 346816512, while the sum is 70.

The spelling of 7883224687861 in words is "seven trillion, eight hundred eighty-three billion, two hundred twenty-four million, six hundred eighty-seven thousand, eight hundred sixty-one".