11859422618 has 16 divisors (see below), whose sum is σ = 18216934560. Its totient is φ = 5787324816.

The previous prime is 11859422609. The next prime is 11859422629. The reversal of 11859422618 is 81622495811.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59648 + ... + 165156.

It is an arithmetic number, because the mean of its divisors is an integer number (1138558410).

Almost surely, 2^11859422618 is an apocalyptic number.

11859422618 is a deficient number, since it is larger than the sum of its proper divisors (6357511942).

11859422618 is a wasteful number, since it uses less digits than its factorization.

11859422618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106861.

The product of its digits is 276480, while the sum is 47.

The spelling of 11859422618 in words is "eleven billion, eight hundred fifty-nine million, four hundred twenty-two thousand, six hundred eighteen".