727840067945 has 16 divisors (see below), whose sum is σ = 882396016320. Its totient is φ = 576310593600.

The previous prime is 727840067923. The next prime is 727840067951. The reversal of 727840067945 is 549760048727.

It is not a de Polignac number, because 727840067945 - 2⁶ = 727840067881 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1714835 + ... + 2096744.

It is an arithmetic number, because the mean of its divisors is an integer number (55149751020).

Almost surely, 2^727840067945 is an apocalyptic number.

It is an amenable number.

727840067945 is a deficient number, since it is larger than the sum of its proper divisors (154555948375).

727840067945 is a wasteful number, since it uses less digits than its factorization.

727840067945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811976.

The product of its (nonzero) digits is 23708160, while the sum is 59.

The spelling of 727840067945 in words is "seven hundred twenty-seven billion, eight hundred forty million, sixty-seven thousand, nine hundred forty-five".