68472940351 has 2 divisors, whose sum is σ = 68472940352. Its totient is φ = 68472940350.

The previous prime is 68472940271. The next prime is 68472940379. The reversal of 68472940351 is 15304927486.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68472940351 - 2⁹ = 68472939839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68472940295 and 68472940304.

It is a congruent number.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34236470175 + 34236470176.

It is an arithmetic number, because the mean of its divisors is an integer number (34236470176).

It is a 2-persistent number, because it is pandigital, and so is 2⋅68472940351 = 136945880702, but 3⋅68472940351 = 205418821053 is not.

Almost surely, 2^68472940351 is an apocalyptic number.

68472940351 is a deficient number, since it is larger than the sum of its proper divisors (1).

68472940351 is an equidigital number, since it uses as much as digits as its factorization.

68472940351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 68472940351 in words is "sixty-eight billion, four hundred seventy-two million, nine hundred forty thousand, three hundred fifty-one".