68461864811 has 8 divisors (see below), whose sum is σ = 70840863120. Its totient is φ = 66084082848.

The previous prime is 68461864771. The next prime is 68461864831. The reversal of 68461864811 is 11846816486.

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

It is a cyclic number.

It is not a de Polignac number, because 68461864811 - 2⁶ = 68461864747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68461864831) 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, 188816 + ... + 415421.

It is an arithmetic number, because the mean of its divisors is an integer number (8855107890).

Almost surely, 2^68461864811 is an apocalyptic number.

68461864811 is a deficient number, since it is larger than the sum of its proper divisors (2378998309).

68461864811 is a wasteful number, since it uses less digits than its factorization.

68461864811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608173.

The product of its digits is 1769472, while the sum is 53.

The spelling of 68461864811 in words is "sixty-eight billion, four hundred sixty-one million, eight hundred sixty-four thousand, eight hundred eleven".