20848930705 has 16 divisors (see below), whose sum is σ = 26512693200. Its totient is φ = 15711216640.

The previous prime is 20848930693. The next prime is 20848930769. The reversal of 20848930705 is 50703984802.

It can be written as a sum of positive squares in 8 ways, for example, as 1293984784 + 19554945921 = 35972^2 + 139839^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20848930705 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1747540 + ... + 1759429.

It is an arithmetic number, because the mean of its divisors is an integer number (1657043325).

Almost surely, 2^20848930705 is an apocalyptic number.

It is an amenable number.

20848930705 is a deficient number, since it is larger than the sum of its proper divisors (5663762495).

20848930705 is a wasteful number, since it uses less digits than its factorization.

20848930705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507044.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 20848930705 in words is "twenty billion, eight hundred forty-eight million, nine hundred thirty thousand, seven hundred five".