218001531734087 has 2 divisors, whose sum is σ = 218001531734088. Its totient is φ = 218001531734086.

The previous prime is 218001531734053. The next prime is 218001531734093. The reversal of 218001531734087 is 780437135100812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 218001531734087 - 2⁶ = 218001531734023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218001531434087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109000765867043 + 109000765867044.

It is an arithmetic number, because the mean of its divisors is an integer number (109000765867044).

Almost surely, 2^{218001531734087} is an apocalyptic number.

218001531734087 is a deficient number, since it is larger than the sum of its proper divisors (1).

218001531734087 is an equidigital number, since it uses as much as digits as its factorization.

218001531734087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 50.

Adding to 218001531734087 its reverse (780437135100812), we get a palindrome (998438666834899).

The spelling of 218001531734087 in words is "two hundred eighteen trillion, one billion, five hundred thirty-one million, seven hundred thirty-four thousand, eighty-seven".