68541329865 has 16 divisors (see below), whose sum is σ = 110987408448. Its totient is φ = 36114949056.

The previous prime is 68541329819. The next prime is 68541329869. The reversal of 68541329865 is 56892314586.

It is not a de Polignac number, because 68541329865 - 2²² = 68537135561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68541329869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27525394 + ... + 27527883.

It is an arithmetic number, because the mean of its divisors is an integer number (6936713028).

Almost surely, 2^68541329865 is an apocalyptic number.

It is an amenable number.

68541329865 is a deficient number, since it is larger than the sum of its proper divisors (42446078583).

68541329865 is a wasteful number, since it uses less digits than its factorization.

68541329865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55053368.

The product of its digits is 12441600, while the sum is 57.

The spelling of 68541329865 in words is "sixty-eight billion, five hundred forty-one million, three hundred twenty-nine thousand, eight hundred sixty-five".