12239367551 has 2 divisors, whose sum is σ = 12239367552. Its totient is φ = 12239367550.

The previous prime is 12239367523. The next prime is 12239367659. The reversal of 12239367551 is 15576393221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12239367551 - 2¹⁰ = 12239366527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12239367251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6119683775 + 6119683776.

It is an arithmetic number, because the mean of its divisors is an integer number (6119683776).

Almost surely, 2^12239367551 is an apocalyptic number.

12239367551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12239367551 is an equidigital number, since it uses as much as digits as its factorization.

12239367551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 44.

The spelling of 12239367551 in words is "twelve billion, two hundred thirty-nine million, three hundred sixty-seven thousand, five hundred fifty-one".