20786363533 has 8 divisors (see below), whose sum is σ = 22990323608. Its totient is φ = 18668833344.

The previous prime is 20786363513. The next prime is 20786363537. The reversal of 20786363533 is 33536368702.

It can be written as a sum of positive squares in 4 ways, for example, as 55547209 + 20730816324 = 7453^2 + 143982^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20786363533 - 2⁵ = 20786363501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20786363537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21606966 + ... + 21607927.

It is an arithmetic number, because the mean of its divisors is an integer number (2873790451).

Almost surely, 2^20786363533 is an apocalyptic number.

It is an amenable number.

20786363533 is a deficient number, since it is larger than the sum of its proper divisors (2203960075).

20786363533 is a wasteful number, since it uses less digits than its factorization.

20786363533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43214943.

The product of its (nonzero) digits is 1632960, while the sum is 46.

The spelling of 20786363533 in words is "twenty billion, seven hundred eighty-six million, three hundred sixty-three thousand, five hundred thirty-three".