68051719 has 4 divisors (see below), whose sum is σ = 70398360. Its totient is φ = 65705080.

The previous prime is 68051713. The next prime is 68051729. The reversal of 68051719 is 91715086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68051719 - 2⁷ = 68051591 is a prime.

It is a super-2 number, since 2×68051719² = 9262072917709922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68051713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173277 + ... + 1173334.

It is an arithmetic number, because the mean of its divisors is an integer number (17599590).

Almost surely, 2^68051719 is an apocalyptic number.

68051719 is a deficient number, since it is larger than the sum of its proper divisors (2346641).

68051719 is a wasteful number, since it uses less digits than its factorization.

68051719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346640.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 68051719 is about 8249.3465801844. The cubic root of 68051719 is about 408.2689639290.

The spelling of 68051719 in words is "sixty-eight million, fifty-one thousand, seven hundred nineteen".