3216781330 has 16 divisors (see below), whose sum is σ = 6617378880. Its totient is φ = 1102896432.

The previous prime is 3216781307. The next prime is 3216781331. The reversal of 3216781330 is 331876123.

3216781330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3216781331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22976940 + ... + 22977079.

It is an arithmetic number, because the mean of its divisors is an integer number (413586180).

Almost surely, 2^3216781330 is an apocalyptic number.

3216781330 is an abundant number, since it is smaller than the sum of its proper divisors (3400597550).

3216781330 is a wasteful number, since it uses less digits than its factorization.

3216781330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45954033.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3216781330 is about 56716.6759427948. The cubic root of 3216781330 is about 1476.1840657953.

The spelling of 3216781330 in words is "three billion, two hundred sixteen million, seven hundred eighty-one thousand, three hundred thirty".