4326778318464 has 1024 divisors, whose sum is σ = 16184217600000. Its totient is φ = 1133195857920.

The previous prime is 4326778318463. The next prime is 4326778318501. The reversal of 4326778318464 is 4648138776234.

4326778318464 is a `hidden beast` number, since 4 + 3 + 26 + 77 + 83 + 1 + 8 + 464 = 666.

4326778318464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (4326778318463) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 698202214 + ... + 698208410.

It is an arithmetic number, because the mean of its divisors is an integer number (15804900000).

Almost surely, 2^{4326778318464} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4326778318464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8092108800000).

4326778318464 is an abundant number, since it is smaller than the sum of its proper divisors (11857439281536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4326778318464 is a wasteful number, since it uses less digits than its factorization.

4326778318464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6291 (or 6259 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 63.

The spelling of 4326778318464 in words is "four trillion, three hundred twenty-six billion, seven hundred seventy-eight million, three hundred eighteen thousand, four hundred sixty-four".