12345786619 has 4 divisors (see below), whose sum is σ = 12383085400. Its totient is φ = 12308487840.

The previous prime is 12345786601. The next prime is 12345786623. The reversal of 12345786619 is 91668754321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12345786619 - 2⁵ = 12345786587 is a prime.

It is a super-2 number, since 2×12345786619² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12345786319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18648894 + ... + 18649555.

It is an arithmetic number, because the mean of its divisors is an integer number (3095771350).

Almost surely, 2^12345786619 is an apocalyptic number.

12345786619 is a deficient number, since it is larger than the sum of its proper divisors (37298781).

12345786619 is an equidigital number, since it uses as much as digits as its factorization.

12345786619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37298780.

The product of its digits is 2177280, while the sum is 52.

The spelling of 12345786619 in words is "twelve billion, three hundred forty-five million, seven hundred eighty-six thousand, six hundred nineteen".