68103871951 has 2 divisors, whose sum is σ = 68103871952. Its totient is φ = 68103871950.

The previous prime is 68103871903. The next prime is 68103872041. The reversal of 68103871951 is 15917830186.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68103871951 - 2²⁹ = 67567001039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68103871895 and 68103871904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68103875951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34051935975 + 34051935976.

It is an arithmetic number, because the mean of its divisors is an integer number (34051935976).

Almost surely, 2^68103871951 is an apocalyptic number.

68103871951 is a deficient number, since it is larger than the sum of its proper divisors (1).

68103871951 is an equidigital number, since it uses as much as digits as its factorization.

68103871951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 68103871951 in words is "sixty-eight billion, one hundred three million, eight hundred seventy-one thousand, nine hundred fifty-one".