712778535438256 has 160 divisors (see below), whose sum is σ = 1619344295331840. Its totient is φ = 297570854310912.

The previous prime is 712778535438247. The next prime is 712778535438353. The reversal of 712778535438256 is 652834535877217.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2676537046 + ... + 2676803338.

It is an arithmetic number, because the mean of its divisors is an integer number (10120901845824).

Almost surely, 2^{712778535438256} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712778535438256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809672147665920).

712778535438256 is an abundant number, since it is smaller than the sum of its proper divisors (906565759893584).

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

712778535438256 is a wasteful number, since it uses less digits than its factorization.

712778535438256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267843 (or 267837 counting only the distinct ones).

The product of its digits is 2370816000, while the sum is 73.

The spelling of 712778535438256 in words is "seven hundred twelve trillion, seven hundred seventy-eight billion, five hundred thirty-five million, four hundred thirty-eight thousand, two hundred fifty-six".