20001744343 has 16 divisors (see below), whose sum is σ = 23507878464. Its totient is φ = 16661053440.

The previous prime is 20001744307. The next prime is 20001744397. The reversal of 20001744343 is 34344710002.

It is a cyclic number.

It is not a de Polignac number, because 20001744343 - 2⁹ = 20001743831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001745343) by changing a digit.

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, 61830 + ... + 209347.

It is an arithmetic number, because the mean of its divisors is an integer number (1469242404).

Almost surely, 2^20001744343 is an apocalyptic number.

20001744343 is a deficient number, since it is larger than the sum of its proper divisors (3506134121).

20001744343 is a wasteful number, since it uses less digits than its factorization.

20001744343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271482.

The product of its (nonzero) digits is 8064, while the sum is 28.

The spelling of 20001744343 in words is "twenty billion, one million, seven hundred forty-four thousand, three hundred forty-three".