20385878803 has 8 divisors (see below), whose sum is σ = 20647443600. Its totient is φ = 20125363200.

The previous prime is 20385878801. The next prime is 20385878813. The reversal of 20385878803 is 30887858302.

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 20385878803 - 2¹ = 20385878801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20385878801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223153 + ... + 300946.

It is an arithmetic number, because the mean of its divisors is an integer number (2580930450).

Almost surely, 2^20385878803 is an apocalyptic number.

20385878803 is a deficient number, since it is larger than the sum of its proper divisors (261564797).

20385878803 is an equidigital number, since it uses as much as digits as its factorization.

20385878803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524597.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 20385878803 in words is "twenty billion, three hundred eighty-five million, eight hundred seventy-eight thousand, eight hundred three".