2991001718 has 4 divisors (see below), whose sum is σ = 4486502580. Its totient is φ = 1495500858.

The previous prime is 2991001711. The next prime is 2991001733. The reversal of 2991001718 is 8171001992.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991001711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747750428 + ... + 747750431.

It is an arithmetic number, because the mean of its divisors is an integer number (1121625645).

Almost surely, 2^2991001718 is an apocalyptic number.

2991001718 is a deficient number, since it is larger than the sum of its proper divisors (1495500862).

2991001718 is a wasteful number, since it uses less digits than its factorization.

2991001718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495500861.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 2991001718 is about 54690.0513621993. The cubic root of 2991001718 is about 1440.8061519403.

The spelling of 2991001718 in words is "two billion, nine hundred ninety-one million, one thousand, seven hundred eighteen".