68389774994793 has 8 divisors (see below), whose sum is σ = 104212990468288. Its totient is φ = 39079871425584.

The previous prime is 68389774994767. The next prime is 68389774994819. The reversal of 68389774994793 is 39749947798386.

It is an interprime number because it is at equal distance from previous prime (68389774994767) and next prime (68389774994819).

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

It is not a de Polignac number, because 68389774994793 - 2²⁹ = 68389238123881 is a prime.

It is a super-2 number, since 2×68389774994793² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68389774994697 and 68389774994706.

It is not an unprimeable number, because it can be changed into a prime (68389774954793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628327976046 + ... + 1628327976087.

It is an arithmetic number, because the mean of its divisors is an integer number (13026623808536).

Almost surely, 2^{68389774994793} is an apocalyptic number.

It is an amenable number.

68389774994793 is a deficient number, since it is larger than the sum of its proper divisors (35823215473495).

68389774994793 is a wasteful number, since it uses less digits than its factorization.

68389774994793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256655952143.

The product of its digits is 124439390208, while the sum is 93.

The spelling of 68389774994793 in words is "sixty-eight trillion, three hundred eighty-nine billion, seven hundred seventy-four million, nine hundred ninety-four thousand, seven hundred ninety-three".