9944411818 has 32 divisors (see below), whose sum is σ = 16809596928. Its totient is φ = 4371250800.

The previous prime is 9944411801. The next prime is 9944411833. The reversal of 9944411818 is 8181144499.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132521 + ... + 1141267.

It is an arithmetic number, because the mean of its divisors is an integer number (525299904).

Almost surely, 2^9944411818 is an apocalyptic number.

9944411818 is a deficient number, since it is larger than the sum of its proper divisors (6865185110).

9944411818 is a wasteful number, since it uses less digits than its factorization.

9944411818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10458.

The product of its digits is 331776, while the sum is 49.

The square root of 9944411818 is about 99721.6717569456. The cubic root of 9944411818 is about 2150.4352331788.

The spelling of 9944411818 in words is "nine billion, nine hundred forty-four million, four hundred eleven thousand, eight hundred eighteen".