68347976441 has 4 divisors (see below), whose sum is σ = 68355210084. Its totient is φ = 68340742800.

The previous prime is 68347976429. The next prime is 68347976447. The reversal of 68347976441 is 14467974386.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54859476841 + 13488499600 = 234221^2 + 116140^2 .

It is a cyclic number.

It is not a de Polignac number, because 68347976441 - 2¹⁸ = 68347714297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68347976447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3602630 + ... + 3621551.

It is an arithmetic number, because the mean of its divisors is an integer number (17088802521).

Almost surely, 2^68347976441 is an apocalyptic number.

It is an amenable number.

68347976441 is a deficient number, since it is larger than the sum of its proper divisors (7233643).

68347976441 is an equidigital number, since it uses as much as digits as its factorization.

68347976441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7233642.

The product of its digits is 24385536, while the sum is 59.

The spelling of 68347976441 in words is "sixty-eight billion, three hundred forty-seven million, nine hundred seventy-six thousand, four hundred forty-one".