7811878822041 has 24 divisors (see below), whose sum is σ = 12374178883200. Its totient is φ = 4368953501472.

The previous prime is 7811878821991. The next prime is 7811878822063. The reversal of 7811878822041 is 1402288781187.

It is not a de Polignac number, because 7811878822041 - 2¹⁸ = 7811878559897 is a prime.

It is a super-2 number, since 2×7811878822041² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7811878822541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 565333866 + ... + 565347683.

It is an arithmetic number, because the mean of its divisors is an integer number (515590786800).

Almost surely, 2^{7811878822041} is an apocalyptic number.

It is an amenable number.

7811878822041 is a deficient number, since it is larger than the sum of its proper divisors (4562300061159).

7811878822041 is a wasteful number, since it uses less digits than its factorization.

7811878822041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130681613 (or 1130681606 counting only the distinct ones).

The product of its (nonzero) digits is 3211264, while the sum is 57.

The spelling of 7811878822041 in words is "seven trillion, eight hundred eleven billion, eight hundred seventy-eight million, eight hundred twenty-two thousand, forty-one".