199474783876 has 9 divisors (see below), whose sum is σ = 349082434981. Its totient is φ = 99736945312.

The previous prime is 199474783841. The next prime is 199474783891. The reversal of 199474783876 is 678387474991.

The square root of 199474783876 is 446626.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 197589140100 + 1885643776 = 444510^2 + 43424^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199474783799 and 199474783808.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 781596 + ... + 1004908.

Almost surely, 2^199474783876 is an apocalyptic number.

199474783876 is the 446626-th square number.

It is an amenable number.

199474783876 is a deficient number, since it is larger than the sum of its proper divisors (149607651105).

199474783876 is an frugal number, since it uses more digits than its factorization.

199474783876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446630 (or 223315 counting only the distinct ones).

The product of its digits is 512096256, while the sum is 73.

The spelling of 199474783876 in words is "one hundred ninety-nine billion, four hundred seventy-four million, seven hundred eighty-three thousand, eight hundred seventy-six".