18900657841127 has 2 divisors, whose sum is σ = 18900657841128. Its totient is φ = 18900657841126.

The previous prime is 18900657841081. The next prime is 18900657841139. The reversal of 18900657841127 is 72114875600981.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18900657841127 - 2¹⁴ = 18900657824743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18900657841927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9450328920563 + 9450328920564.

It is an arithmetic number, because the mean of its divisors is an integer number (9450328920564).

Almost surely, 2^{18900657841127} is an apocalyptic number.

18900657841127 is a deficient number, since it is larger than the sum of its proper divisors (1).

18900657841127 is an equidigital number, since it uses as much as digits as its factorization.

18900657841127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 59.

The spelling of 18900657841127 in words is "eighteen trillion, nine hundred billion, six hundred fifty-seven million, eight hundred forty-one thousand, one hundred twenty-seven".