20303717852 has 24 divisors (see below), whose sum is σ = 38768791152. Its totient is φ = 9227260800.

The previous prime is 20303717807. The next prime is 20303717879. The reversal of 20303717852 is 25871730302.

It is a super-2 number, since 2×20303717852² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 216488 + ... + 295760.

It is an arithmetic number, because the mean of its divisors is an integer number (1615366298).

Almost surely, 2^20303717852 is an apocalyptic number.

20303717852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20303717852 is a deficient number, since it is larger than the sum of its proper divisors (18465073300).

20303717852 is a wasteful number, since it uses less digits than its factorization.

20303717852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85109 (or 85107 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 20303717852 in words is "twenty billion, three hundred three million, seven hundred seventeen thousand, eight hundred fifty-two".