2198545130269 has 4 divisors (see below), whose sum is σ = 2199170253244. Its totient is φ = 2197920007296.

The previous prime is 2198545130263. The next prime is 2198545130273. The reversal of 2198545130269 is 9620315458912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1908923563044 + 289621567225 = 1381638^2 + 538165^2 .

It is a cyclic number.

It is not a de Polignac number, because 2198545130269 - 2⁹ = 2198545129757 is a prime.

It is a super-2 number, since 2×2198545130269² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198545130263) 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, 312556212 + ... + 312563245.

It is an arithmetic number, because the mean of its divisors is an integer number (549792563311).

Almost surely, 2^{2198545130269} is an apocalyptic number.

It is an amenable number.

2198545130269 is a deficient number, since it is larger than the sum of its proper divisors (625122975).

2198545130269 is an equidigital number, since it uses as much as digits as its factorization.

2198545130269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625122974.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 2198545130269 in words is "two trillion, one hundred ninety-eight billion, five hundred forty-five million, one hundred thirty thousand, two hundred sixty-nine".