731340045061065 has 64 divisors (see below), whose sum is σ = 1467265294252800. Its totient is φ = 342361901952000.

The previous prime is 731340045061063. The next prime is 731340045061091. The reversal of 731340045061065 is 560160540043137.

731340045061065 is a `hidden beast` number, since 7 + 3 + 1 + 34 + 0 + 0 + 4 + 506 + 106 + 5 = 666.

731340045061065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 731340045061065 - 2¹ = 731340045061063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 731340045061065.

It is not an unprimeable number, because it can be changed into a prime (731340045061063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8491075536 + ... + 8491161665.

It is an arithmetic number, because the mean of its divisors is an integer number (22926020222700).

Almost surely, 2^{731340045061065} is an apocalyptic number.

It is an amenable number.

731340045061065 is an abundant number, since it is smaller than the sum of its proper divisors (735925249191735).

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

731340045061065 is a wasteful number, since it uses less digits than its factorization.

731340045061065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16982237255 (or 16982237249 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 731340045061065 in words is "seven hundred thirty-one trillion, three hundred forty billion, forty-five million, sixty-one thousand, sixty-five".