12461336551 has 2 divisors, whose sum is σ = 12461336552. Its totient is φ = 12461336550.

The previous prime is 12461336467. The next prime is 12461336567. The reversal of 12461336551 is 15563316421.

It is a strong prime.

It is an emirp because it is prime and its reverse (15563316421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12461336551 - 2⁷ = 12461336423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12461336551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12461336581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6230668275 + 6230668276.

It is an arithmetic number, because the mean of its divisors is an integer number (6230668276).

Almost surely, 2^12461336551 is an apocalyptic number.

12461336551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12461336551 is an equidigital number, since it uses as much as digits as its factorization.

12461336551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The spelling of 12461336551 in words is "twelve billion, four hundred sixty-one million, three hundred thirty-six thousand, five hundred fifty-one".