18548108990 has 16 divisors (see below), whose sum is σ = 33442908048. Its totient is φ = 7406729856.

The previous prime is 18548108981. The next prime is 18548109037. The reversal of 18548108990 is 9980184581.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1557992 + ... + 1569851.

It is an arithmetic number, because the mean of its divisors is an integer number (2090181753).

Almost surely, 2^18548108990 is an apocalyptic number.

18548108990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18548108990 is a deficient number, since it is larger than the sum of its proper divisors (14894799058).

18548108990 is a wasteful number, since it uses less digits than its factorization.

18548108990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128443.

The product of its (nonzero) digits is 829440, while the sum is 53.

The spelling of 18548108990 in words is "eighteen billion, five hundred forty-eight million, one hundred eight thousand, nine hundred ninety".