12361768789 has 2 divisors, whose sum is σ = 12361768790. Its totient is φ = 12361768788.

The previous prime is 12361768787. The next prime is 12361768877. The reversal of 12361768789 is 98786716321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8952376689 + 3409392100 = 94617^2 + 58390^2 .

It is a cyclic number.

It is not a de Polignac number, because 12361768789 - 2¹ = 12361768787 is a prime.

Together with 12361768787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12361768787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6180884394 + 6180884395.

It is an arithmetic number, because the mean of its divisors is an integer number (6180884395).

Almost surely, 2^12361768789 is an apocalyptic number.

It is an amenable number.

12361768789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12361768789 is an equidigital number, since it uses as much as digits as its factorization.

12361768789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The spelling of 12361768789 in words is "twelve billion, three hundred sixty-one million, seven hundred sixty-eight thousand, seven hundred eighty-nine".