3227278464 has 160 divisors (see below), whose sum is σ = 9706365900. Its totient is φ = 1064337408.

The previous prime is 3227278447. The next prime is 3227278489. The reversal of 3227278464 is 4648727223.

It can be written as a sum of positive squares in 2 ways, for example, as 3227148864 + 129600 = 56808^2 + 360^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1004092 + ... + 1007300.

Almost surely, 2^3227278464 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 3227278464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4853182950).

3227278464 is an abundant number, since it is smaller than the sum of its proper divisors (6479087436).

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

3227278464 is an equidigital number, since it uses as much as digits as its factorization.

3227278464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332 (or 3311 counting only the distinct ones).

The product of its digits is 903168, while the sum is 45.

The square root of 3227278464 is about 56809.1406729586. The cubic root of 3227278464 is about 1477.7880373272.

The spelling of 3227278464 in words is "three billion, two hundred twenty-seven million, two hundred seventy-eight thousand, four hundred sixty-four".