199193874323237 has 8 divisors (see below), whose sum is σ = 201220154277240. Its totient is φ = 197177650349760.

The previous prime is 199193874323231. The next prime is 199193874323287. The reversal of 199193874323237 is 732323478391991.

199193874323237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 14113606²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 181197282590116 + 17996591733121 = 13460954^2 + 4242239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199193874323237 - 2¹⁸ = 199193874061093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199193874323231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513955314 + ... + 2514034547.

It is an arithmetic number, because the mean of its divisors is an integer number (25152519284655).

Almost surely, 2^{199193874323237} is an apocalyptic number.

It is an amenable number.

199193874323237 is a deficient number, since it is larger than the sum of its proper divisors (2026279954003).

199193874323237 is a wasteful number, since it uses less digits than its factorization.

199193874323237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027990263.

The product of its digits is 370355328, while the sum is 71.

The spelling of 199193874323237 in words is "one hundred ninety-nine trillion, one hundred ninety-three billion, eight hundred seventy-four million, three hundred twenty-three thousand, two hundred thirty-seven".