20292909245 has 54 divisors (see below), whose sum is σ = 29959166142. Its totient is φ = 13155240672.

The previous prime is 20292909229. The next prime is 20292909271. The reversal of 20292909245 is 54290929202.

It can be written as a sum of positive squares in only one way, i.e., 16234327396 + 4058581849 = 127414^2 + 63707^2 .

It is not a de Polignac number, because 20292909245 - 2⁴ = 20292909229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20292909196 and 20292909205.

It is a congruent number.

It is an unprimeable number.

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 53 ways as a sum of consecutive naturals, for example, 42364916 + ... + 42365394.

It is an arithmetic number, because the mean of its divisors is an integer number (554799373).

Almost surely, 2^20292909245 is an apocalyptic number.

It is an amenable number.

20292909245 is a deficient number, since it is larger than the sum of its proper divisors (9666256897).

20292909245 is an frugal number, since it uses more digits than its factorization.

20292909245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 20292909245 in words is "twenty billion, two hundred ninety-two million, nine hundred nine thousand, two hundred forty-five".