20002036869 has 12 divisors (see below), whose sum is σ = 29177890092. Its totient is φ = 13202664000.

The previous prime is 20002036849. The next prime is 20002036889. The reversal of 20002036869 is 96863020002.

It is an interprime number because it is at equal distance from previous prime (20002036849) and next prime (20002036889).

It can be written as a sum of positive squares in 2 ways, for example, as 16355084769 + 3646952100 = 127887^2 + 60390^2 .

It is not a de Polignac number, because 20002036869 - 2⁹ = 20002036357 is a prime.

It is a super-3 number, since 3×20002036869³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002036849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11001312 + ... + 11003129.

It is an arithmetic number, because the mean of its divisors is an integer number (2431490841).

Almost surely, 2^20002036869 is an apocalyptic number.

It is an amenable number.

20002036869 is a deficient number, since it is larger than the sum of its proper divisors (9175853223).

20002036869 is a wasteful number, since it uses less digits than its factorization.

20002036869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22004548 (or 22004545 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 20002036869 in words is "twenty billion, two million, thirty-six thousand, eight hundred sixty-nine".