68238297418 has 4 divisors (see below), whose sum is σ = 102357446130. Its totient is φ = 34119148708.

The previous prime is 68238297389. The next prime is 68238297511. The reversal of 68238297418 is 81479283286.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81479283286 = 2 ⋅40739641643.

It can be written as a sum of positive squares in only one way, i.e., 67856603049 + 381694369 = 260493^2 + 19537^2 .

It is a super-3 number, since 3×68238297418³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17059574353 + ... + 17059574356.

Almost surely, 2^68238297418 is an apocalyptic number.

68238297418 is a deficient number, since it is larger than the sum of its proper divisors (34119148712).

68238297418 is a wasteful number, since it uses less digits than its factorization.

68238297418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34119148711.

The product of its digits is 9289728, while the sum is 58.

The spelling of 68238297418 in words is "sixty-eight billion, two hundred thirty-eight million, two hundred ninety-seven thousand, four hundred eighteen".