2991159069 has 8 divisors (see below), whose sum is σ = 4096001760. Its totient is φ = 1940211216.

The previous prime is 2991159053. The next prime is 2991159079. The reversal of 2991159069 is 9609511992.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2991159069 - 2⁴ = 2991159053 is a prime.

It is a super-2 number, since 2×2991159069² = 17894065152121893522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991159019) by changing a digit.

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, 13473579 + ... + 13473800.

It is an arithmetic number, because the mean of its divisors is an integer number (512000220).

Almost surely, 2^2991159069 is an apocalyptic number.

It is an amenable number.

2991159069 is a deficient number, since it is larger than the sum of its proper divisors (1104842691).

2991159069 is a wasteful number, since it uses less digits than its factorization.

2991159069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26947419.

The product of its (nonzero) digits is 393660, while the sum is 51.

The square root of 2991159069 is about 54691.4899138797. The cubic root of 2991159069 is about 1440.8314175352.

The spelling of 2991159069 in words is "two billion, nine hundred ninety-one million, one hundred fifty-nine thousand, sixty-nine".