199074549949570 has 32 divisors (see below), whose sum is σ = 360651022915248. Its totient is φ = 79115065106688.

The previous prime is 199074549949559. The next prime is 199074549949579. The reversal of 199074549949570 is 75949945470991.

It can be written as a sum of positive squares in 8 ways, for example, as 58197994395121 + 140876555554449 = 7628761^2 + 11869143^2 .

It is not an unprimeable number, because it can be changed into a prime (199074549949579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10397584 + ... + 22500196.

Almost surely, 2^{199074549949570} is an apocalyptic number.

199074549949570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199074549949570 is a deficient number, since it is larger than the sum of its proper divisors (161576472965678).

199074549949570 is a wasteful number, since it uses less digits than its factorization.

199074549949570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12113254.

The product of its (nonzero) digits is 4629441600, while the sum is 82.

The spelling of 199074549949570 in words is "one hundred ninety-nine trillion, seventy-four billion, five hundred forty-nine million, nine hundred forty-nine thousand, five hundred seventy".