18800379043 has 2 divisors, whose sum is σ = 18800379044. Its totient is φ = 18800379042.

The previous prime is 18800379023. The next prime is 18800379079. The reversal of 18800379043 is 34097300881.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18800379043 - 2¹⁷ = 18800247971 is a prime.

It is not a weakly prime, because it can be changed into another prime (18800379023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9400189521 + 9400189522.

It is an arithmetic number, because the mean of its divisors is an integer number (9400189522).

Almost surely, 2^18800379043 is an apocalyptic number.

18800379043 is a deficient number, since it is larger than the sum of its proper divisors (1).

18800379043 is an equidigital number, since it uses as much as digits as its factorization.

18800379043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 18800379043 in words is "eighteen billion, eight hundred million, three hundred seventy-nine thousand, forty-three".