2891344966 has 32 divisors (see below), whose sum is σ = 4480375680. Its totient is φ = 1398706176.

The previous prime is 2891344957. The next prime is 2891344991. The reversal of 2891344966 is 6694431982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3573570 + ... + 3574378.

It is an arithmetic number, because the mean of its divisors is an integer number (140011740).

Almost surely, 2^2891344966 is an apocalyptic number.

2891344966 is a deficient number, since it is larger than the sum of its proper divisors (1589030714).

2891344966 is a wasteful number, since it uses less digits than its factorization.

2891344966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248.

The product of its digits is 2239488, while the sum is 52.

The square root of 2891344966 is about 53771.2280499525. The cubic root of 2891344966 is about 1424.6230608225.

The spelling of 2891344966 in words is "two billion, eight hundred ninety-one million, three hundred forty-four thousand, nine hundred sixty-six".