4378136256 has 168 divisors, whose sum is σ = 14226204720. Its totient is φ = 1276176384.

The previous prime is 4378136249. The next prime is 4378136267. The reversal of 4378136256 is 6526318734.

4378136256 is a `hidden beast` number, since 4 + 3 + 7 + 8 + 13 + 625 + 6 = 666.

It is a super-2 number, since 2×4378136256² = 38336154152203395072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126886 + ... + 157658.

It is an arithmetic number, because the mean of its divisors is an integer number (84679790).

Almost surely, 2^4378136256 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 4378136256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7113102360).

4378136256 is an abundant number, since it is smaller than the sum of its proper divisors (9848068464).

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

4378136256 is a wasteful number, since it uses less digits than its factorization.

4378136256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30823 (or 30810 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 4378136256 is about 66167.4863962657. The cubic root of 4378136256 is about 1635.9238770343.

The spelling of 4378136256 in words is "four billion, three hundred seventy-eight million, one hundred thirty-six thousand, two hundred fifty-six".