2891049198 has 16 divisors (see below), whose sum is σ = 5791726416. Its totient is φ = 962078400.

The previous prime is 2891049169. The next prime is 2891049233. The reversal of 2891049198 is 8919401982.

It is a self number, because there is not a number n which added to its sum of digits gives 2891049198.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397261 + ... + 404472.

It is an arithmetic number, because the mean of its divisors is an integer number (361982901).

Almost surely, 2^2891049198 is an apocalyptic number.

2891049198 is an abundant number, since it is smaller than the sum of its proper divisors (2900677218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2891049198 is a wasteful number, since it uses less digits than its factorization.

2891049198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802339.

The product of its (nonzero) digits is 373248, while the sum is 51.

The square root of 2891049198 is about 53768.4777355655. The cubic root of 2891049198 is about 1424.5744822444.

The spelling of 2891049198 in words is "two billion, eight hundred ninety-one million, forty-nine thousand, one hundred ninety-eight".