12816724619 has 2 divisors, whose sum is σ = 12816724620. Its totient is φ = 12816724618.

The previous prime is 12816724597. The next prime is 12816724633. The reversal of 12816724619 is 91642761821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12816724619 - 2¹⁶ = 12816659083 is a prime.

It is a super-2 number, since 2×12816724619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12816724819) 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 as a sum of consecutive naturals, namely, 6408362309 + 6408362310.

It is an arithmetic number, because the mean of its divisors is an integer number (6408362310).

Almost surely, 2^12816724619 is an apocalyptic number.

12816724619 is a deficient number, since it is larger than the sum of its proper divisors (1).

12816724619 is an equidigital number, since it uses as much as digits as its factorization.

12816724619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The spelling of 12816724619 in words is "twelve billion, eight hundred sixteen million, seven hundred twenty-four thousand, six hundred nineteen".