20734802810 has 16 divisors (see below), whose sum is σ = 37482832296. Its totient is φ = 8258323968.

The previous prime is 20734802797. The next prime is 20734802819. The reversal of 20734802810 is 1820843702.

It can be written as a sum of positive squares in 4 ways, for example, as 17141879329 + 3592923481 = 130927^2 + 59941^2 .

It is a super-2 number, since 2×20734802810² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20734802819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4447199 + ... + 4451858.

Almost surely, 2^20734802810 is an apocalyptic number.

20734802810 is a deficient number, since it is larger than the sum of its proper divisors (16748029486).

20734802810 is a wasteful number, since it uses less digits than its factorization.

20734802810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8899297.

The product of its (nonzero) digits is 21504, while the sum is 35.

The spelling of 20734802810 in words is "twenty billion, seven hundred thirty-four million, eight hundred two thousand, eight hundred ten".