2991711969 has 16 divisors (see below), whose sum is σ = 4692882240. Its totient is φ = 1877152320.

The previous prime is 2991711967. The next prime is 2991711977. The reversal of 2991711969 is 9691171992.

2991711969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2991711969 - 2¹ = 2991711967 is a prime.

It is a super-2 number, since 2×2991711969² = 17900681010915713922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2991711967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3258487 + ... + 3259404.

It is an arithmetic number, because the mean of its divisors is an integer number (293305140).

Almost surely, 2^2991711969 is an apocalyptic number.

It is an amenable number.

2991711969 is a deficient number, since it is larger than the sum of its proper divisors (1701170271).

2991711969 is a wasteful number, since it uses less digits than its factorization.

2991711969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517917 (or 6517911 counting only the distinct ones).

The product of its digits is 551124, while the sum is 54.

The square root of 2991711969 is about 54696.5443972469. The cubic root of 2991711969 is about 1440.9201887655.

The spelling of 2991711969 in words is "two billion, nine hundred ninety-one million, seven hundred eleven thousand, nine hundred sixty-nine".