20002036871 has 8 divisors (see below), whose sum is σ = 20987008224. Its totient is φ = 19026675360.

The previous prime is 20002036849. The next prime is 20002036889. The reversal of 20002036871 is 17863020002.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20002036871 is a prime.

It is a super-3 number, since 3×20002036871³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002036811) 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, 2398196 + ... + 2406521.

It is an arithmetic number, because the mean of its divisors is an integer number (2623376028).

Almost surely, 2^20002036871 is an apocalyptic number.

20002036871 is a deficient number, since it is larger than the sum of its proper divisors (984971353).

20002036871 is a wasteful number, since it uses less digits than its factorization.

20002036871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804921.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 20002036871 its reverse (17863020002), we get a palindrome (37865056873).

The spelling of 20002036871 in words is "twenty billion, two million, thirty-six thousand, eight hundred seventy-one".