20050003721870 has 8 divisors (see below), whose sum is σ = 36090006699384. Its totient is φ = 8020001488744.

The previous prime is 20050003721837. The next prime is 20050003721899. The reversal of 20050003721870 is 7812730005002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20050003721870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002500186084 + ... + 1002500186103.

It is an arithmetic number, because the mean of its divisors is an integer number (4511250837423).

Almost surely, 2^{20050003721870} is an apocalyptic number.

20050003721870 is a deficient number, since it is larger than the sum of its proper divisors (16040002977514).

20050003721870 is a wasteful number, since it uses less digits than its factorization.

20050003721870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005000372194.

The product of its (nonzero) digits is 23520, while the sum is 35.

Adding to 20050003721870 its reverse (7812730005002), we get a palindrome (27862733726872).

The spelling of 20050003721870 in words is "twenty trillion, fifty billion, three million, seven hundred twenty-one thousand, eight hundred seventy".