11648789969 has 2 divisors, whose sum is σ = 11648789970. Its totient is φ = 11648789968.

The previous prime is 11648789959. The next prime is 11648790007. The reversal of 11648789969 is 96998784611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6506035600 + 5142754369 = 80660^2 + 71713^2 .

It is an emirp because it is prime and its reverse (96998784611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11648789969 - 2⁴ = 11648789953 is a prime.

It is a super-2 number, since 2×11648789969² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11648789899 and 11648789908.

It is not a weakly prime, because it can be changed into another prime (11648789959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5824394984 + 5824394985.

It is an arithmetic number, because the mean of its divisors is an integer number (5824394985).

Almost surely, 2^11648789969 is an apocalyptic number.

It is an amenable number.

11648789969 is a deficient number, since it is larger than the sum of its proper divisors (1).

11648789969 is an equidigital number, since it uses as much as digits as its factorization.

11648789969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47029248, while the sum is 68.

The spelling of 11648789969 in words is "eleven billion, six hundred forty-eight million, seven hundred eighty-nine thousand, nine hundred sixty-nine".