1818075979 has 2 divisors, whose sum is σ = 1818075980. Its totient is φ = 1818075978.

The previous prime is 1818075953. The next prime is 1818076037. The reversal of 1818075979 is 9795708181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1818075979 - 2¹⁹ = 1817551691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1818072979) 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 as a sum of consecutive naturals, namely, 909037989 + 909037990.

It is an arithmetic number, because the mean of its divisors is an integer number (909037990).

Almost surely, 2^1818075979 is an apocalyptic number.

1818075979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1818075979 is an equidigital number, since it uses as much as digits as its factorization.

1818075979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 55.

The square root of 1818075979 is about 42638.9021786443. The cubic root of 1818075979 is about 1220.4987611763.

The spelling of 1818075979 in words is "one billion, eight hundred eighteen million, seventy-five thousand, nine hundred seventy-nine".