18419828049 has 48 divisors (see below), whose sum is σ = 32212702080. Its totient is φ = 9901324800.

The previous prime is 18419828039. The next prime is 18419828057. The reversal of 18419828049 is 94082891481.

It is a happy number.

It is not a de Polignac number, because 18419828049 - 2⁸ = 18419827793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18419827986 and 18419828004.

It is not an unprimeable number, because it can be changed into a prime (18419828039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3016099 + ... + 3022199.

It is an arithmetic number, because the mean of its divisors is an integer number (671097960).

Almost surely, 2^18419828049 is an apocalyptic number.

It is an amenable number.

18419828049 is a deficient number, since it is larger than the sum of its proper divisors (13792874031).

18419828049 is a wasteful number, since it uses less digits than its factorization.

18419828049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8950 (or 8947 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 18419828049 in words is "eighteen billion, four hundred nineteen million, eight hundred twenty-eight thousand, forty-nine".