785786507216 has 20 divisors (see below), whose sum is σ = 1563608963172. Its totient is φ = 382274516736.

The previous prime is 785786507213. The next prime is 785786507251. The reversal of 785786507216 is 612705687587.

It can be written as a sum of positive squares in 2 ways, for example, as 741562099600 + 44224407616 = 861140^2 + 210296^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785786507213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663670445 + ... + 663671628.

Almost surely, 2^785786507216 is an apocalyptic number.

It is an amenable number.

785786507216 is a deficient number, since it is larger than the sum of its proper divisors (777822455956).

785786507216 is a wasteful number, since it uses less digits than its factorization.

785786507216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327342118 (or 1327342112 counting only the distinct ones).

The product of its (nonzero) digits is 39513600, while the sum is 62.

The spelling of 785786507216 in words is "seven hundred eighty-five billion, seven hundred eighty-six million, five hundred seven thousand, two hundred sixteen".