199894841244 has 216 divisors, whose sum is σ = 594784990800. Its totient is φ = 56435097600.

The previous prime is 199894841243. The next prime is 199894841339. The reversal of 199894841244 is 442148498991.

199894841244 is a `hidden beast` number, since 1 + 9 + 98 + 94 + 8 + 412 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199894841243) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 137007387 + ... + 137008845.

Almost surely, 2^199894841244 is an apocalyptic number.

199894841244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199894841244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297392495400).

199894841244 is an abundant number, since it is smaller than the sum of its proper divisors (394890149556).

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

199894841244 is a wasteful number, since it uses less digits than its factorization.

199894841244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353 (or 2341 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 63.

The spelling of 199894841244 in words is "one hundred ninety-nine billion, eight hundred ninety-four million, eight hundred forty-one thousand, two hundred forty-four".