68028387845 has 16 divisors (see below), whose sum is σ = 89061895872. Its totient is φ = 49471551360.

The previous prime is 68028387809. The next prime is 68028387851. The reversal of 68028387845 is 54878382086.

It is not a de Polignac number, because 68028387845 - 2⁸ = 68028387589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877634 + ... + 951996.

It is an arithmetic number, because the mean of its divisors is an integer number (5566368492).

Almost surely, 2^68028387845 is an apocalyptic number.

It is an amenable number.

68028387845 is a deficient number, since it is larger than the sum of its proper divisors (21033508027).

68028387845 is a wasteful number, since it uses less digits than its factorization.

68028387845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91012.

The product of its (nonzero) digits is 20643840, while the sum is 59.

The spelling of 68028387845 in words is "sixty-eight billion, twenty-eight million, three hundred eighty-seven thousand, eight hundred forty-five".