68373748493 has 4 divisors (see below), whose sum is σ = 68382864000. Its totient is φ = 68364632988.

The previous prime is 68373748477. The next prime is 68373748537. The reversal of 68373748493 is 39484737386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68373748493 - 2⁴ = 68373748477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68373748463) 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, 4546493 + ... + 4561506.

It is an arithmetic number, because the mean of its divisors is an integer number (17095716000).

Almost surely, 2^68373748493 is an apocalyptic number.

It is an amenable number.

68373748493 is a deficient number, since it is larger than the sum of its proper divisors (9115507).

68373748493 is an equidigital number, since it uses as much as digits as its factorization.

68373748493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9115506.

The product of its digits is 73156608, while the sum is 62.

The spelling of 68373748493 in words is "sixty-eight billion, three hundred seventy-three million, seven hundred forty-eight thousand, four hundred ninety-three".