2691287318411 has 16 divisors (see below), whose sum is σ = 2846590992000. Its totient is φ = 2537351308800.

The previous prime is 2691287318347. The next prime is 2691287318437. The reversal of 2691287318411 is 1148137821962.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2691287318411 - 2⁶ = 2691287318347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2691287318471) 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, 75748331 + ... + 75783851.

It is an arithmetic number, because the mean of its divisors is an integer number (177911937000).

Almost surely, 2^{2691287318411} is an apocalyptic number.

2691287318411 is a deficient number, since it is larger than the sum of its proper divisors (155303673589).

2691287318411 is a wasteful number, since it uses less digits than its factorization.

2691287318411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54650.

The product of its digits is 1161216, while the sum is 53.

The spelling of 2691287318411 in words is "two trillion, six hundred ninety-one billion, two hundred eighty-seven million, three hundred eighteen thousand, four hundred eleven".