11986859198 has 8 divisors (see below), whose sum is σ = 17983197720. Its totient is φ = 5992459960.

The previous prime is 11986859191. The next prime is 11986859207. The reversal of 11986859198 is 89195868911.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11986859191) 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, 469268 + ... + 494151.

It is an arithmetic number, because the mean of its divisors is an integer number (2247899715).

Almost surely, 2^11986859198 is an apocalyptic number.

11986859198 is a deficient number, since it is larger than the sum of its proper divisors (5996338522).

11986859198 is an equidigital number, since it uses as much as digits as its factorization.

11986859198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969642.

The product of its digits is 11197440, while the sum is 65.

The spelling of 11986859198 in words is "eleven billion, nine hundred eighty-six million, eight hundred fifty-nine thousand, one hundred ninety-eight".