3255440918728 has 8 divisors (see below), whose sum is σ = 6103951722630. Its totient is φ = 1627720459360.

The previous prime is 3255440918671. The next prime is 3255440918783. The reversal of 3255440918728 is 8278190445523.

It can be written as a sum of positive squares in only one way, i.e., 2513296574244 + 742144344484 = 1585338^2 + 861478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×3255440918728² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203465057413 + ... + 203465057428.

Almost surely, 2^{3255440918728} is an apocalyptic number.

It is an amenable number.

3255440918728 is a deficient number, since it is larger than the sum of its proper divisors (2848510803902).

3255440918728 is a wasteful number, since it uses less digits than its factorization.

3255440918728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406930114847 (or 406930114843 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 3255440918728 in words is "three trillion, two hundred fifty-five billion, four hundred forty million, nine hundred eighteen thousand, seven hundred twenty-eight".