199371487916 has 6 divisors (see below), whose sum is σ = 348900103860. Its totient is φ = 99685743956.

The previous prime is 199371487907. The next prime is 199371487919. The reversal of 199371487916 is 619784173991.

It is a happy number.

199371487916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199371487919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24921435986 + ... + 24921435993.

It is an arithmetic number, because the mean of its divisors is an integer number (58150017310).

Almost surely, 2^199371487916 is an apocalyptic number.

It is an amenable number.

199371487916 is a deficient number, since it is larger than the sum of its proper divisors (149528615944).

199371487916 is a wasteful number, since it uses less digits than its factorization.

199371487916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49842871983 (or 49842871981 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 65.

The spelling of 199371487916 in words is "one hundred ninety-nine billion, three hundred seventy-one million, four hundred eighty-seven thousand, nine hundred sixteen".