2691956311 has 16 divisors (see below), whose sum is σ = 3011613696. Its totient is φ = 2384920000.

The previous prime is 2691956299. The next prime is 2691956321. The reversal of 2691956311 is 1136591962.

It is a cyclic number.

It is not a de Polignac number, because 2691956311 - 2¹⁷ = 2691825239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691956321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489306 + ... + 494776.

It is an arithmetic number, because the mean of its divisors is an integer number (188225856).

Almost surely, 2^2691956311 is an apocalyptic number.

2691956311 is a deficient number, since it is larger than the sum of its proper divisors (319657385).

2691956311 is a wasteful number, since it uses less digits than its factorization.

2691956311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6614.

The product of its digits is 87480, while the sum is 43.

The square root of 2691956311 is about 51884.0660607859. The cubic root of 2691956311 is about 1391.0924784368.

The spelling of 2691956311 in words is "two billion, six hundred ninety-one million, nine hundred fifty-six thousand, three hundred eleven".