11798910618 has 24 divisors (see below), whose sum is σ = 25938102624. Its totient is φ = 3575427240.

The previous prime is 11798910601. The next prime is 11798910647. The reversal of 11798910618 is 81601989711.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8125246 + ... + 8126697.

It is an arithmetic number, because the mean of its divisors is an integer number (1080754276).

Almost surely, 2^11798910618 is an apocalyptic number.

11798910618 is an abundant number, since it is smaller than the sum of its proper divisors (14139192006).

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

11798910618 is a wasteful number, since it uses less digits than its factorization.

11798910618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16251970 (or 16251959 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 51.

The spelling of 11798910618 in words is "eleven billion, seven hundred ninety-eight million, nine hundred ten thousand, six hundred eighteen".