199214772245 has 18 divisors (see below), whose sum is σ = 247621326498. Its totient is φ = 153853881888.

The previous prime is 199214772181. The next prime is 199214772299. The reversal of 199214772245 is 542277412991.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 22929833476 + 176284938769 = 151426^2 + 419863^2 .

It is not a de Polignac number, because 199214772245 - 2⁶ = 199214772181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28939574 + ... + 28946456.

It is an arithmetic number, because the mean of its divisors is an integer number (13756740361).

Almost surely, 2^199214772245 is an apocalyptic number.

It is an amenable number.

199214772245 is a deficient number, since it is larger than the sum of its proper divisors (48406554253).

199214772245 is an frugal number, since it uses more digits than its factorization.

199214772245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829 (or 6917 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 53.

The spelling of 199214772245 in words is "one hundred ninety-nine billion, two hundred fourteen million, seven hundred seventy-two thousand, two hundred forty-five".