68906394460 has 48 divisors (see below), whose sum is σ = 152365731840. Its totient is φ = 26103954240.

The previous prime is 68906394451. The next prime is 68906394481. The reversal of 68906394460 is 6449360986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1308357 + ... + 1360003.

It is an arithmetic number, because the mean of its divisors is an integer number (3174286080).

Almost surely, 2^68906394460 is an apocalyptic number.

It is an amenable number.

68906394460 is an abundant number, since it is smaller than the sum of its proper divisors (83459337380).

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

68906394460 is a wasteful number, since it uses less digits than its factorization.

68906394460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55186 (or 55184 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 68906394460 in words is "sixty-eight billion, nine hundred six million, three hundred ninety-four thousand, four hundred sixty".