12618204789511 has 2 divisors, whose sum is σ = 12618204789512. Its totient is φ = 12618204789510.

The previous prime is 12618204789493. The next prime is 12618204789517. The reversal of 12618204789511 is 11598740281621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12618204789511 - 2⁷ = 12618204789383 is a prime.

It is a super-2 number, since 2×12618204789511² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12618204789517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309102394755 + 6309102394756.

It is an arithmetic number, because the mean of its divisors is an integer number (6309102394756).

Almost surely, 2^{12618204789511} is an apocalyptic number.

12618204789511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618204789511 is an equidigital number, since it uses as much as digits as its factorization.

12618204789511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 12618204789511 in words is "twelve trillion, six hundred eighteen billion, two hundred four million, seven hundred eighty-nine thousand, five hundred eleven".