68703639123 has 16 divisors (see below), whose sum is σ = 104780700416. Its totient is φ = 39225682080.

The previous prime is 68703639097. The next prime is 68703639139. The reversal of 68703639123 is 32193630786.

It is not a de Polignac number, because 68703639123 - 2⁵ = 68703639091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68703639023) 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 15 ways as a sum of consecutive naturals, for example, 1372336 + ... + 1421517.

It is an arithmetic number, because the mean of its divisors is an integer number (6548793776).

Almost surely, 2^68703639123 is an apocalyptic number.

68703639123 is a deficient number, since it is larger than the sum of its proper divisors (36077061293).

68703639123 is a wasteful number, since it uses less digits than its factorization.

68703639123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795034.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 68703639123 in words is "sixty-eight billion, seven hundred three million, six hundred thirty-nine thousand, one hundred twenty-three".