618481984684787 has 2 divisors, whose sum is σ = 618481984684788. Its totient is φ = 618481984684786.

The previous prime is 618481984684717. The next prime is 618481984684841. The reversal of 618481984684787 is 787486489184816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 618481984684787 - 2¹⁰ = 618481984683763 is a prime.

It is not a weakly prime, because it can be changed into another prime (618481984684717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309240992342393 + 309240992342394.

It is an arithmetic number, because the mean of its divisors is an integer number (309240992342394).

Almost surely, 2^{618481984684787} is an apocalyptic number.

618481984684787 is a deficient number, since it is larger than the sum of its proper divisors (1).

618481984684787 is an equidigital number, since it uses as much as digits as its factorization.

618481984684787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33294385152, while the sum is 89.

The spelling of 618481984684787 in words is "six hundred eighteen trillion, four hundred eighty-one billion, nine hundred eighty-four million, six hundred eighty-four thousand, seven hundred eighty-seven".