3278065574749 has 16 divisors (see below), whose sum is σ = 3767259758080. Its totient is φ = 2794097825280.

The previous prime is 3278065574747. The next prime is 3278065574879. The reversal of 3278065574749 is 9474755608723.

It is a cyclic number.

It is not a de Polignac number, because 3278065574749 - 2¹ = 3278065574747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3278065574743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28283692 + ... + 28399354.

It is an arithmetic number, because the mean of its divisors is an integer number (235453734880).

Almost surely, 2^{3278065574749} is an apocalyptic number.

It is an amenable number.

3278065574749 is a deficient number, since it is larger than the sum of its proper divisors (489194183331).

3278065574749 is a wasteful number, since it uses less digits than its factorization.

3278065574749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138220.

The product of its (nonzero) digits is 355622400, while the sum is 67.

The spelling of 3278065574749 in words is "three trillion, two hundred seventy-eight billion, sixty-five million, five hundred seventy-four thousand, seven hundred forty-nine".