18775027656311 has 2 divisors, whose sum is σ = 18775027656312. Its totient is φ = 18775027656310.

The previous prime is 18775027656227. The next prime is 18775027656317. The reversal of 18775027656311 is 11365672057781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18775027656311 - 2¹⁰ = 18775027655287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18775027656317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9387513828155 + 9387513828156.

It is an arithmetic number, because the mean of its divisors is an integer number (9387513828156).

Almost surely, 2^{18775027656311} is an apocalyptic number.

18775027656311 is a deficient number, since it is larger than the sum of its proper divisors (1).

18775027656311 is an equidigital number, since it uses as much as digits as its factorization.

18775027656311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14817600, while the sum is 59.

The spelling of 18775027656311 in words is "eighteen trillion, seven hundred seventy-five billion, twenty-seven million, six hundred fifty-six thousand, three hundred eleven".