68635116329 has 8 divisors (see below), whose sum is σ = 74927272392. Its totient is φ = 62487607680.

The previous prime is 68635116289. The next prime is 68635116337. The reversal of 68635116329 is 92361153686.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8050216729 + 60584899600 = 89723^2 + 246140^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68635116329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68635116029) 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, 36160862 + ... + 36162759.

It is an arithmetic number, because the mean of its divisors is an integer number (9365909049).

Almost surely, 2^68635116329 is an apocalyptic number.

It is an amenable number.

68635116329 is a deficient number, since it is larger than the sum of its proper divisors (6292156063).

68635116329 is a wasteful number, since it uses less digits than its factorization.

68635116329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72323707.

The product of its digits is 1399680, while the sum is 50.

The spelling of 68635116329 in words is "sixty-eight billion, six hundred thirty-five million, one hundred sixteen thousand, three hundred twenty-nine".