2991889148 has 12 divisors (see below), whose sum is σ = 5294635920. Its totient is φ = 1479136032.

The previous prime is 2991889129. The next prime is 2991889163. The reversal of 2991889148 is 8419881992.

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 3 ways as a sum of consecutive naturals, for example, 4201736 + ... + 4202447.

It is an arithmetic number, because the mean of its divisors is an integer number (441219660).

Almost surely, 2^2991889148 is an apocalyptic number.

It is an amenable number.

2991889148 is a deficient number, since it is larger than the sum of its proper divisors (2302746772).

2991889148 is a wasteful number, since it uses less digits than its factorization.

2991889148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8404276 (or 8404274 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 59.

The square root of 2991889148 is about 54698.1640276893. The cubic root of 2991889148 is about 1440.9486335446.

The spelling of 2991889148 in words is "two billion, nine hundred ninety-one million, eight hundred eighty-nine thousand, one hundred forty-eight".