68463354864 has 40 divisors (see below), whose sum is σ = 176874153040. Its totient is φ = 22819765248.

The previous prime is 68463354863. The next prime is 68463354881. The reversal of 68463354864 is 46845336486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68463354863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086264 + ... + 1147560.

It is an arithmetic number, because the mean of its divisors is an integer number (4421853826).

Almost surely, 2^68463354864 is an apocalyptic number.

It is an amenable number.

68463354864 is an abundant number, since it is smaller than the sum of its proper divisors (108410798176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68463354864 is a wasteful number, since it uses less digits than its factorization.

68463354864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84577 (or 84571 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 57.

The spelling of 68463354864 in words is "sixty-eight billion, four hundred sixty-three million, three hundred fifty-four thousand, eight hundred sixty-four".