199136793290 has 16 divisors (see below), whose sum is σ = 360518174568. Its totient is φ = 79194284736.

The previous prime is 199136793263. The next prime is 199136793347. The reversal of 199136793290 is 92397631991.

It can be written as a sum of positive squares in 4 ways, for example, as 195614252089 + 3522541201 = 442283^2 + 59351^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57552257 + ... + 57555716.

Almost surely, 2^199136793290 is an apocalyptic number.

199136793290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199136793290 is a deficient number, since it is larger than the sum of its proper divisors (161381381278).

199136793290 is a wasteful number, since it uses less digits than its factorization.

199136793290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115108153.

The product of its (nonzero) digits is 4960116, while the sum is 59.

The spelling of 199136793290 in words is "one hundred ninety-nine billion, one hundred thirty-six million, seven hundred ninety-three thousand, two hundred ninety".