18246249468 has 36 divisors (see below), whose sum is σ = 46154646720. Its totient is φ = 6077839296.

The previous prime is 18246249451. The next prime is 18246249487. The reversal of 18246249468 is 86494264281.

It is a happy number.

18246249468 is a `hidden beast` number, since 1 + 8 + 2 + 4 + 624 + 9 + 4 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124305 + ... + 227912.

It is an arithmetic number, because the mean of its divisors is an integer number (1282073520).

Almost surely, 2^18246249468 is an apocalyptic number.

18246249468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18246249468 is an abundant number, since it is smaller than the sum of its proper divisors (27908397252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18246249468 is a wasteful number, since it uses less digits than its factorization.

18246249468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353666 (or 353661 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The spelling of 18246249468 in words is "eighteen billion, two hundred forty-six million, two hundred forty-nine thousand, four hundred sixty-eight".