20773734250 has 32 divisors (see below), whose sum is σ = 39622199760. Its totient is φ = 8152705600.

The previous prime is 20773734211. The next prime is 20773734263. The reversal of 20773734250 is 5243737702.

It can be written as a sum of positive squares in 8 ways, for example, as 7183071009 + 13590663241 = 84753^2 + 116579^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770665 + ... + 797164.

Almost surely, 2^20773734250 is an apocalyptic number.

20773734250 is a deficient number, since it is larger than the sum of its proper divisors (18848465510).

20773734250 is a wasteful number, since it uses less digits than its factorization.

20773734250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567899 (or 1567889 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 40.

The spelling of 20773734250 in words is "twenty billion, seven hundred seventy-three million, seven hundred thirty-four thousand, two hundred fifty".