4218523473887 has 2 divisors, whose sum is σ = 4218523473888. Its totient is φ = 4218523473886.

The previous prime is 4218523473823. The next prime is 4218523473911. The reversal of 4218523473887 is 7883743258124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4218523473887 - 2⁶ = 4218523473823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4218523473187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2109261736943 + 2109261736944.

It is an arithmetic number, because the mean of its divisors is an integer number (2109261736944).

Almost surely, 2^{4218523473887} is an apocalyptic number.

4218523473887 is a deficient number, since it is larger than the sum of its proper divisors (1).

4218523473887 is an equidigital number, since it uses as much as digits as its factorization.

4218523473887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72253440, while the sum is 62.

The spelling of 4218523473887 in words is "four trillion, two hundred eighteen billion, five hundred twenty-three million, four hundred seventy-three thousand, eight hundred eighty-seven".