68183654399 has 36 divisors (see below), whose sum is σ = 83920865616. Its totient is φ = 55131487488.

The previous prime is 68183654389. The next prime is 68183654489. The reversal of 68183654399 is 99345638186.

It is a Cunningham number, because it is equal to 261120²-1.

It is a de Polignac number, because none of the positive numbers 2^k-68183654399 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68183654339) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6000107 + ... + 6011459.

It is an arithmetic number, because the mean of its divisors is an integer number (2331135156).

Almost surely, 2^68183654399 is an apocalyptic number.

68183654399 is a deficient number, since it is larger than the sum of its proper divisors (15737211217).

68183654399 is a wasteful number, since it uses less digits than its factorization.

68183654399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536 (or 11456 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 62.

The spelling of 68183654399 in words is "sixty-eight billion, one hundred eighty-three million, six hundred fifty-four thousand, three hundred ninety-nine".