68578909773 has 16 divisors (see below), whose sum is σ = 99756360000. Its totient is φ = 41560801280.

The previous prime is 68578909771. The next prime is 68578909801. The reversal of 68578909773 is 37790987586.

It is a cyclic number.

It is not a de Polignac number, because 68578909773 - 2¹ = 68578909771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68578909698 and 68578909707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68578909771) 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, 774733 + ... + 858701.

It is an arithmetic number, because the mean of its divisors is an integer number (6234772500).

Almost surely, 2^68578909773 is an apocalyptic number.

It is an amenable number.

68578909773 is a deficient number, since it is larger than the sum of its proper divisors (31177450227).

68578909773 is a wasteful number, since it uses less digits than its factorization.

68578909773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108732.

The product of its (nonzero) digits is 160030080, while the sum is 69.

The spelling of 68578909773 in words is "sixty-eight billion, five hundred seventy-eight million, nine hundred nine thousand, seven hundred seventy-three".