199937714387 has 4 divisors (see below), whose sum is σ = 199961336616. Its totient is φ = 199914092160.

The previous prime is 199937714329. The next prime is 199937714393. The reversal of 199937714387 is 783417739991.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199937714387 - 2¹⁰ = 199937713363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199937714087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11798414 + ... + 11815347.

It is an arithmetic number, because the mean of its divisors is an integer number (49990334154).

Almost surely, 2^199937714387 is an apocalyptic number.

199937714387 is a deficient number, since it is larger than the sum of its proper divisors (23622229).

199937714387 is an equidigital number, since it uses as much as digits as its factorization.

199937714387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23622228.

The product of its digits is 72013536, while the sum is 68.

The spelling of 199937714387 in words is "one hundred ninety-nine billion, nine hundred thirty-seven million, seven hundred fourteen thousand, three hundred eighty-seven".