18877224959927 has 2 divisors, whose sum is σ = 18877224959928. Its totient is φ = 18877224959926.

The previous prime is 18877224959881. The next prime is 18877224960017. The reversal of 18877224959927 is 72995942277881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18877224959927 - 2¹⁰ = 18877224958903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18877224959227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9438612479963 + 9438612479964.

It is an arithmetic number, because the mean of its divisors is an integer number (9438612479964).

Almost surely, 2^{18877224959927} is an apocalyptic number.

18877224959927 is a deficient number, since it is larger than the sum of its proper divisors (1).

18877224959927 is an equidigital number, since it uses as much as digits as its factorization.

18877224959927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560481280, while the sum is 80.

The spelling of 18877224959927 in words is "eighteen trillion, eight hundred seventy-seven billion, two hundred twenty-four million, nine hundred fifty-nine thousand, nine hundred twenty-seven".