20678868073 has 8 divisors (see below), whose sum is σ = 21000517056. Its totient is φ = 20358063600.

The previous prime is 20678868071. The next prime is 20678868097. The reversal of 20678868073 is 37086887602.

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 20678868073 - 2¹ = 20678868071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20678868071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161686 + ... + 259807.

It is an arithmetic number, because the mean of its divisors is an integer number (2625064632).

Almost surely, 2^20678868073 is an apocalyptic number.

It is an amenable number.

20678868073 is a deficient number, since it is larger than the sum of its proper divisors (321648983).

20678868073 is an equidigital number, since it uses as much as digits as its factorization.

20678868073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422255.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 20678868073 in words is "twenty billion, six hundred seventy-eight million, eight hundred sixty-eight thousand, seventy-three".