190000916297 has 4 divisors (see below), whose sum is σ = 193585839300. Its totient is φ = 186415993296.

The previous prime is 190000916293. The next prime is 190000916309. The reversal of 190000916297 is 792619000091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 792619000091 = 157 ⋅5048528663.

It can be written as a sum of positive squares in 2 ways, for example, as 145084048201 + 44916868096 = 380899^2 + 211936^2 .

It is a cyclic number.

It is not a de Polignac number, because 190000916297 - 2² = 190000916293 is a prime.

It is a super-2 number, since 2×190000916297² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190000916293) 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 3 ways as a sum of consecutive naturals, for example, 1792461422 + ... + 1792461527.

It is an arithmetic number, because the mean of its divisors is an integer number (48396459825).

Almost surely, 2^190000916297 is an apocalyptic number.

It is an amenable number.

190000916297 is a deficient number, since it is larger than the sum of its proper divisors (3584923003).

190000916297 is an equidigital number, since it uses as much as digits as its factorization.

190000916297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584923002.

The product of its (nonzero) digits is 61236, while the sum is 44.

The spelling of 190000916297 in words is "one hundred ninety billion, nine hundred sixteen thousand, two hundred ninety-seven".