11838859858 has 8 divisors (see below), whose sum is σ = 20295188352. Its totient is φ = 5073797076.

The previous prime is 11838859849. The next prime is 11838859859. The reversal of 11838859858 is 85895883811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11838859858.

It is not an unprimeable number, because it can be changed into a prime (11838859859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422816410 + ... + 422816437.

It is an arithmetic number, because the mean of its divisors is an integer number (2536898544).

Almost surely, 2^11838859858 is an apocalyptic number.

11838859858 is a deficient number, since it is larger than the sum of its proper divisors (8456328494).

11838859858 is an equidigital number, since it uses as much as digits as its factorization.

11838859858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845632856.

The product of its digits is 22118400, while the sum is 64.

The spelling of 11838859858 in words is "eleven billion, eight hundred thirty-eight million, eight hundred fifty-nine thousand, eight hundred fifty-eight".