18803539879 has 2 divisors, whose sum is σ = 18803539880. Its totient is φ = 18803539878.

The previous prime is 18803539847. The next prime is 18803539889. The reversal of 18803539879 is 97893530881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18803539879 - 2⁵ = 18803539847 is a prime.

It is a super-3 number, since 3×18803539879³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18803539889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9401769939 + 9401769940.

It is an arithmetic number, because the mean of its divisors is an integer number (9401769940).

Almost surely, 2^18803539879 is an apocalyptic number.

18803539879 is a deficient number, since it is larger than the sum of its proper divisors (1).

18803539879 is an equidigital number, since it uses as much as digits as its factorization.

18803539879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 18803539879 in words is "eighteen billion, eight hundred three million, five hundred thirty-nine thousand, eight hundred seventy-nine".