20934883449 has 24 divisors (see below), whose sum is σ = 32305921440. Its totient is φ = 13024680768.

The previous prime is 20934883441. The next prime is 20934883483. The reversal of 20934883449 is 94438843902.

20934883449 is a `hidden beast` number, since 2 + 0 + 93 + 488 + 34 + 49 = 666.

It is not a de Polignac number, because 20934883449 - 2³ = 20934883441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20934883395 and 20934883404.

It is not an unprimeable number, because it can be changed into a prime (20934883441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 902172 + ... + 925085.

It is an arithmetic number, because the mean of its divisors is an integer number (1346080060).

Almost surely, 2^20934883449 is an apocalyptic number.

It is an amenable number.

20934883449 is a deficient number, since it is larger than the sum of its proper divisors (11371037991).

20934883449 is a wasteful number, since it uses less digits than its factorization.

20934883449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827349 (or 1827346 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 20934883449 in words is "twenty billion, nine hundred thirty-four million, eight hundred eighty-three thousand, four hundred forty-nine".