20935307273 has 16 divisors (see below), whose sum is σ = 22389666816. Its totient is φ = 19527797520.

The previous prime is 20935307257. The next prime is 20935307287. The reversal of 20935307273 is 37270353902.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20935307273 - 2⁴ = 20935307257 is a prime.

It is a super-2 number, since 2×20935307273² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20935307273.

It is not an unprimeable number, because it can be changed into a prime (20935307233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607286 + ... + 640832.

It is an arithmetic number, because the mean of its divisors is an integer number (1399354176).

Almost surely, 2^20935307273 is an apocalyptic number.

20935307273 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20935307273 is a deficient number, since it is larger than the sum of its proper divisors (1454359543).

20935307273 is a wasteful number, since it uses less digits than its factorization.

20935307273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34244.

The product of its (nonzero) digits is 238140, while the sum is 41.

The spelling of 20935307273 in words is "twenty billion, nine hundred thirty-five million, three hundred seven thousand, two hundred seventy-three".