199286341956 has 288 divisors, whose sum is σ = 591019376640. Its totient is φ = 57953750400.

The previous prime is 199286341907. The next prime is 199286341973. The reversal of 199286341956 is 659143682991.

199286341956 is a `hidden beast` number, since 1 + 9 + 9 + 286 + 341 + 9 + 5 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 199286341893 and 199286341902.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24325821 + ... + 24334011.

Almost surely, 2^199286341956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199286341956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295509688320).

199286341956 is an abundant number, since it is smaller than the sum of its proper divisors (391733034684).

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

199286341956 is a wasteful number, since it uses less digits than its factorization.

199286341956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304 (or 8283 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 63.

The spelling of 199286341956 in words is "one hundred ninety-nine billion, two hundred eighty-six million, three hundred forty-one thousand, nine hundred fifty-six".