3260378125728 has 36 divisors (see below), whose sum is σ = 9271700295858. Its totient is φ = 1086792708480.

The previous prime is 3260378125619. The next prime is 3260378125729. The reversal of 3260378125728 is 8275218730623.

3260378125728 is a `hidden beast` number, since 3 + 2 + 60 + 3 + 7 + 8 + 1 + 2 + 572 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3015460034064 + 244918091664 = 1736508^2 + 494892^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3260378125729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5660378403 + ... + 5660378978.

Almost surely, 2^{3260378125728} is an apocalyptic number.

It is an amenable number.

3260378125728 is an abundant number, since it is smaller than the sum of its proper divisors (6011322170130).

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

3260378125728 is a wasteful number, since it uses less digits than its factorization.

3260378125728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11320757397 (or 11320757386 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 3260378125728 in words is "three trillion, two hundred sixty billion, three hundred seventy-eight million, one hundred twenty-five thousand, seven hundred twenty-eight".