11744620291 has 2 divisors, whose sum is σ = 11744620292. Its totient is φ = 11744620290.

The previous prime is 11744620219. The next prime is 11744620331. The reversal of 11744620291 is 19202644711.

Together with previous prime (11744620219) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (19202644711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11744620291 is a prime.

It is a super-2 number, since 2×11744620291² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11744620291.

It is not a weakly prime, because it can be changed into another prime (11744620211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5872310145 + 5872310146.

It is an arithmetic number, because the mean of its divisors is an integer number (5872310146).

Almost surely, 2^11744620291 is an apocalyptic number.

11744620291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11744620291 is an equidigital number, since it uses as much as digits as its factorization.

11744620291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 11744620291 in words is "eleven billion, seven hundred forty-four million, six hundred twenty thousand, two hundred ninety-one".