4426788678 has 64 divisors (see below), whose sum is σ = 10107840960. Its totient is φ = 1280397312.

The previous prime is 4426788647. The next prime is 4426788683. The reversal of 4426788678 is 8768876244.

It is a congruent number.

It is an unprimeable number.

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, 1495576 + ... + 1498532.

It is an arithmetic number, because the mean of its divisors is an integer number (157935015).

Almost surely, 2^4426788678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4426788678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5053920480).

4426788678 is an abundant number, since it is smaller than the sum of its proper divisors (5681052282).

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

4426788678 is a wasteful number, since it uses less digits than its factorization.

4426788678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121.

The product of its digits is 28901376, while the sum is 60.

The square root of 4426788678 is about 66534.1166470255. The cubic root of 4426788678 is about 1641.9613503533.

The spelling of 4426788678 in words is "four billion, four hundred twenty-six million, seven hundred eighty-eight thousand, six hundred seventy-eight".