199463197686 has 16 divisors (see below), whose sum is σ = 398964510768. Its totient is φ = 66481380000.

The previous prime is 199463197673. The next prime is 199463197691. The reversal of 199463197686 is 686791364991.

199463197686 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×199463197686² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 199463197686.

It is a congruent 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, 1519885 + ... + 1645896.

It is an arithmetic number, because the mean of its divisors is an integer number (24935281923).

Almost surely, 2^199463197686 is an apocalyptic number.

199463197686 is an abundant number, since it is smaller than the sum of its proper divisors (199501313082).

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

199463197686 is a wasteful number, since it uses less digits than its factorization.

199463197686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176287.

The product of its digits is 105815808, while the sum is 69.

The spelling of 199463197686 in words is "one hundred ninety-nine billion, four hundred sixty-three million, one hundred ninety-seven thousand, six hundred eighty-six".