68041482493 has 4 divisors (see below), whose sum is σ = 70387740540. Its totient is φ = 65695224448.

The previous prime is 68041482433. The next prime is 68041482497. The reversal of 68041482493 is 39428414086.

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 48179372004 + 19862110489 = 219498^2 + 140933^2 .

It is a cyclic number.

It is not a de Polignac number, because 68041482493 - 2¹³ = 68041474301 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68041482497) by changing a digit.

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, 1173128980 + ... + 1173129037.

It is an arithmetic number, because the mean of its divisors is an integer number (17596935135).

Almost surely, 2^68041482493 is an apocalyptic number.

It is an amenable number.

68041482493 is a deficient number, since it is larger than the sum of its proper divisors (2346258047).

68041482493 is a wasteful number, since it uses less digits than its factorization.

68041482493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346258046.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 68041482493 in words is "sixty-eight billion, forty-one million, four hundred eighty-two thousand, four hundred ninety-three".