68203871651 has 2 divisors, whose sum is σ = 68203871652. Its totient is φ = 68203871650.

The previous prime is 68203871563. The next prime is 68203871663. The reversal of 68203871651 is 15617830286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68203871651 - 2¹⁰ = 68203870627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68203871596 and 68203871605.

It is not a weakly prime, because it can be changed into another prime (68203831651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34101935825 + 34101935826.

It is an arithmetic number, because the mean of its divisors is an integer number (34101935826).

Almost surely, 2^68203871651 is an apocalyptic number.

68203871651 is a deficient number, since it is larger than the sum of its proper divisors (1).

68203871651 is an equidigital number, since it uses as much as digits as its factorization.

68203871651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 68203871651 in words is "sixty-eight billion, two hundred three million, eight hundred seventy-one thousand, six hundred fifty-one".