18920410343 has 16 divisors (see below), whose sum is σ = 19586810880. Its totient is φ = 18264556800.

The previous prime is 18920410337. The next prime is 18920410357. The reversal of 18920410343 is 34301402981.

It is a cyclic number.

It is not a de Polignac number, because 18920410343 - 2⁶ = 18920410279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18920410373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2020853 + ... + 2030193.

It is an arithmetic number, because the mean of its divisors is an integer number (1224175680).

Almost surely, 2^18920410343 is an apocalyptic number.

18920410343 is a deficient number, since it is larger than the sum of its proper divisors (666400537).

18920410343 is a wasteful number, since it uses less digits than its factorization.

18920410343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9898.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 18920410343 in words is "eighteen billion, nine hundred twenty million, four hundred ten thousand, three hundred forty-three".