68107965291 has 8 divisors (see below), whose sum is σ = 100900689360. Its totient is φ = 45405310176.

The previous prime is 68107965271. The next prime is 68107965337. The reversal of 68107965291 is 19256970186.

68107965291 is a `hidden beast` number, since 6 + 8 + 107 + 9 + 6 + 529 + 1 = 666.

It is not a de Polignac number, because 68107965291 - 2⁹ = 68107964779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68107965241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261258590 + ... + 1261258643.

It is an arithmetic number, because the mean of its divisors is an integer number (12612586170).

Almost surely, 2^68107965291 is an apocalyptic number.

68107965291 is a deficient number, since it is larger than the sum of its proper divisors (32792724069).

68107965291 is a wasteful number, since it uses less digits than its factorization.

68107965291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522517242 (or 2522517236 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 68107965291 in words is "sixty-eight billion, one hundred seven million, nine hundred sixty-five thousand, two hundred ninety-one".