18841876640 has 48 divisors (see below), whose sum is σ = 44808785280. Its totient is φ = 7486828800.

The previous prime is 18841876639. The next prime is 18841876643. The reversal of 18841876640 is 4667814881.

It is not an unprimeable number, because it can be changed into a prime (18841876643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365780 + ... + 414099.

It is an arithmetic number, because the mean of its divisors is an integer number (933516360).

Almost surely, 2^18841876640 is an apocalyptic number.

18841876640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18841876640 is an abundant number, since it is smaller than the sum of its proper divisors (25966908640).

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

18841876640 is a wasteful number, since it uses less digits than its factorization.

18841876640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780045 (or 780037 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 53.

The spelling of 18841876640 in words is "eighteen billion, eight hundred forty-one million, eight hundred seventy-six thousand, six hundred forty".