807785616712 has 8 divisors (see below), whose sum is σ = 1514598031350. Its totient is φ = 403892808352.

The previous prime is 807785616691. The next prime is 807785616713. The reversal of 807785616712 is 217616587708.

It can be written as a sum of positive squares in only one way, i.e., 692466965316 + 115318651396 = 832146^2 + 339586^2 .

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

It is not an unprimeable number, because it can be changed into a prime (807785616713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50486601037 + ... + 50486601052.

Almost surely, 2^807785616712 is an apocalyptic number.

It is an amenable number.

807785616712 is a deficient number, since it is larger than the sum of its proper divisors (706812414638).

807785616712 is a wasteful number, since it uses less digits than its factorization.

807785616712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100973202095 (or 100973202091 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 58.

The spelling of 807785616712 in words is "eight hundred seven billion, seven hundred eighty-five million, six hundred sixteen thousand, seven hundred twelve".