68707661313 has 16 divisors (see below), whose sum is σ = 92436624576. Its totient is φ = 45392040960.

The previous prime is 68707661293. The next prime is 68707661317. The reversal of 68707661313 is 31316670786.

It is a de Polignac number, because none of the positive numbers 2^k-68707661313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68707661317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2541598 + ... + 2568488.

It is an arithmetic number, because the mean of its divisors is an integer number (5777289036).

Almost surely, 2^68707661313 is an apocalyptic number.

It is an amenable number.

68707661313 is a deficient number, since it is larger than the sum of its proper divisors (23728963263).

68707661313 is a wasteful number, since it uses less digits than its factorization.

68707661313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34544.

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 68707661313 in words is "sixty-eight billion, seven hundred seven million, six hundred sixty-one thousand, three hundred thirteen".