68531673698 has 16 divisors (see below), whose sum is σ = 106358261760. Its totient is φ = 33079275600.

The previous prime is 68531673697. The next prime is 68531673703. The reversal of 68531673698 is 89637613586.

It is a self number, because there is not a number n which added to its sum of digits gives 68531673698.

It is not an unprimeable number, because it can be changed into a prime (68531673697) 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, 315353 + ... + 486323.

It is an arithmetic number, because the mean of its divisors is an integer number (6647391360).

Almost surely, 2^68531673698 is an apocalyptic number.

68531673698 is a deficient number, since it is larger than the sum of its proper divisors (37826588062).

68531673698 is a wasteful number, since it uses less digits than its factorization.

68531673698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177913.

The product of its digits is 39191040, while the sum is 62.

The spelling of 68531673698 in words is "sixty-eight billion, five hundred thirty-one million, six hundred seventy-three thousand, six hundred ninety-eight".