68458240826 has 8 divisors (see below), whose sum is σ = 106228304820. Its totient is φ = 33048805888.

The previous prime is 68458240817. The next prime is 68458240843. The reversal of 68458240826 is 62804285486.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64439314801 + 4018926025 = 253849^2 + 63395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68458240826² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 590157191 + ... + 590157306.

Almost surely, 2^68458240826 is an apocalyptic number.

68458240826 is a deficient number, since it is larger than the sum of its proper divisors (37770063994).

68458240826 is a wasteful number, since it uses less digits than its factorization.

68458240826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180314528.

The product of its (nonzero) digits is 5898240, while the sum is 53.

The spelling of 68458240826 in words is "sixty-eight billion, four hundred fifty-eight million, two hundred forty thousand, eight hundred twenty-six".