11662434787 has 2 divisors, whose sum is σ = 11662434788. Its totient is φ = 11662434786.

The previous prime is 11662434779. The next prime is 11662434799. The reversal of 11662434787 is 78743426611.

11662434787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (78743426611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11662434787 - 2³ = 11662434779 is a prime.

It is a super-2 number, since 2×11662434787² (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 11662434787.

It is not a weakly prime, because it can be changed into another prime (11662434737) 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, 5831217393 + 5831217394.

It is an arithmetic number, because the mean of its divisors is an integer number (5831217394).

Almost surely, 2^11662434787 is an apocalyptic number.

11662434787 is a deficient number, since it is larger than the sum of its proper divisors (1).

11662434787 is an equidigital number, since it uses as much as digits as its factorization.

11662434787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 49.

The spelling of 11662434787 in words is "eleven billion, six hundred sixty-two million, four hundred thirty-four thousand, seven hundred eighty-seven".