20384568985210 has 8 divisors (see below), whose sum is σ = 36692224173396. Its totient is φ = 8153827594080.

The previous prime is 20384568985201. The next prime is 20384568985211. The reversal of 20384568985210 is 1258986548302.

It can be written as a sum of positive squares in 2 ways, for example, as 18447514633249 + 1937054351961 = 4295057^2 + 1391781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20384568985211) 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 3 ways as a sum of consecutive naturals, for example, 1019228449251 + ... + 1019228449270.

Almost surely, 2^{20384568985210} is an apocalyptic number.

20384568985210 is a deficient number, since it is larger than the sum of its proper divisors (16307655188186).

20384568985210 is a wasteful number, since it uses less digits than its factorization.

20384568985210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038456898528.

The product of its (nonzero) digits is 33177600, while the sum is 61.

The spelling of 20384568985210 in words is "twenty trillion, three hundred eighty-four billion, five hundred sixty-eight million, nine hundred eighty-five thousand, two hundred ten".