8320400377876 has 12 divisors (see below), whose sum is σ = 14584299856308. Its totient is φ = 4153457561792.

The previous prime is 8320400377873. The next prime is 8320400377931. The reversal of 8320400377876 is 6787730040238.

It can be written as a sum of positive squares in 2 ways, for example, as 2590715584900 + 5729684792976 = 1609570^2 + 2393676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8320400377873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685654011 + ... + 1685658946.

It is an arithmetic number, because the mean of its divisors is an integer number (1215358321359).

Almost surely, 2^{8320400377876} is an apocalyptic number.

It is an amenable number.

8320400377876 is a deficient number, since it is larger than the sum of its proper divisors (6263899478432).

8320400377876 is a wasteful number, since it uses less digits than its factorization.

8320400377876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371313578 (or 3371313576 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 8320400377876 in words is "eight trillion, three hundred twenty billion, four hundred million, three hundred seventy-seven thousand, eight hundred seventy-six".