2991916328 has 16 divisors (see below), whose sum is σ = 5611032000. Its totient is φ = 1495641136.

The previous prime is 2991916327. The next prime is 2991916351. The reversal of 2991916328 is 8236191992.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2991916327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203 + ... + 77421.

It is an arithmetic number, because the mean of its divisors is an integer number (350689500).

Almost surely, 2^2991916328 is an apocalyptic number.

It is an amenable number.

2991916328 is a deficient number, since it is larger than the sum of its proper divisors (2619115672).

2991916328 is a wasteful number, since it uses less digits than its factorization.

2991916328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79264 (or 79260 counting only the distinct ones).

The product of its digits is 419904, while the sum is 50.

The square root of 2991916328 is about 54698.4124815337. The cubic root of 2991916328 is about 1440.9529969934.

The spelling of 2991916328 in words is "two billion, nine hundred ninety-one million, nine hundred sixteen thousand, three hundred twenty-eight".