11697587651 has 2 divisors, whose sum is σ = 11697587652. Its totient is φ = 11697587650.

The previous prime is 11697587597. The next prime is 11697587659. The reversal of 11697587651 is 15678579611.

It is a happy number.

11697587651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (15678579611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11697587651 - 2¹⁴ = 11697571267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11697587659) 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 as a sum of consecutive naturals, namely, 5848793825 + 5848793826.

It is an arithmetic number, because the mean of its divisors is an integer number (5848793826).

Almost surely, 2^11697587651 is an apocalyptic number.

11697587651 is a deficient number, since it is larger than the sum of its proper divisors (1).

11697587651 is an equidigital number, since it uses as much as digits as its factorization.

11697587651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 56.

The spelling of 11697587651 in words is "eleven billion, six hundred ninety-seven million, five hundred eighty-seven thousand, six hundred fifty-one".