6478478838793 has 32 divisors (see below), whose sum is σ = 7354104468480. Its totient is φ = 5662134213120.

The previous prime is 6478478838787. The next prime is 6478478838803. The reversal of 6478478838793 is 3978388748746.

It is a cyclic number.

It is not a de Polignac number, because 6478478838793 - 2⁵ = 6478478838761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6478478838763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33570288 + ... + 33762718.

It is an arithmetic number, because the mean of its divisors is an integer number (229815764640).

Almost surely, 2^{6478478838793} is an apocalyptic number.

It is an amenable number.

6478478838793 is a deficient number, since it is larger than the sum of its proper divisors (875625629687).

6478478838793 is a wasteful number, since it uses less digits than its factorization.

6478478838793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193609.

The product of its digits is 10924720128, while the sum is 82.

The spelling of 6478478838793 in words is "six trillion, four hundred seventy-eight billion, four hundred seventy-eight million, eight hundred thirty-eight thousand, seven hundred ninety-three".