4256686080 has 280 divisors, whose sum is σ = 15271970472. Its totient is φ = 1134231552.

The previous prime is 4256686073. The next prime is 4256686081. The reversal of 4256686080 is 806866524.

4256686080 is a `hidden beast` number, since 4 + 2 + 566 + 8 + 6 + 0 + 80 = 666.

4256686080 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 (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256686081) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3317119 + ... + 3318401.

Almost surely, 2^4256686080 is an apocalyptic number.

4256686080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4256686080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7635985236).

4256686080 is an abundant number, since it is smaller than the sum of its proper divisors (11015284392).

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

4256686080 is an equidigital number, since it uses as much as digits as its factorization.

4256686080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 4256686080 is about 65243.2837922801. The cubic root of 4256686080 is about 1620.6548792646.

The spelling of 4256686080 in words is "four billion, two hundred fifty-six million, six hundred eighty-six thousand, eighty".