199025442513 has 6 divisors (see below), whose sum is σ = 287481194754. Its totient is φ = 132683628336.

The previous prime is 199025442493. The next prime is 199025442533. The reversal of 199025442513 is 315244520991.

It is a happy number.

199025442513 is a `hidden beast` number, since 1 + 9 + 90 + 2 + 5 + 4 + 42 + 513 = 666.

It is an interprime number because it is at equal distance from previous prime (199025442493) and next prime (199025442533).

It can be written as a sum of positive squares in only one way, i.e., 193413484944 + 5611957569 = 439788^2 + 74913^2 .

It is not a de Polignac number, because 199025442513 - 2¹⁴ = 199025426129 is a prime.

It is a super-2 number, since 2×199025442513² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (199025442533) 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 5 ways as a sum of consecutive naturals, for example, 11056969020 + ... + 11056969037.

It is an arithmetic number, because the mean of its divisors is an integer number (47913532459).

Almost surely, 2^199025442513 is an apocalyptic number.

It is an amenable number.

199025442513 is a deficient number, since it is larger than the sum of its proper divisors (88455752241).

199025442513 is a wasteful number, since it uses less digits than its factorization.

199025442513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22113938063 (or 22113938060 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 199025442513 in words is "one hundred ninety-nine billion, twenty-five million, four hundred forty-two thousand, five hundred thirteen".