20886753436 has 24 divisors (see below), whose sum is σ = 37875326720. Its totient is φ = 10071380592.

The previous prime is 20886753379. The next prime is 20886753443. The reversal of 20886753436 is 63435768802.

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, 754986 + ... + 782161.

Almost surely, 2^20886753436 is an apocalyptic number.

It is an amenable number.

20886753436 is a deficient number, since it is larger than the sum of its proper divisors (16988573284).

20886753436 is a wasteful number, since it uses less digits than its factorization.

20886753436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537273 (or 1537271 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 20886753436 in words is "twenty billion, eight hundred eighty-six million, seven hundred fifty-three thousand, four hundred thirty-six".