118784209697 has 2 divisors, whose sum is σ = 118784209698. Its totient is φ = 118784209696.

The previous prime is 118784209693. The next prime is 118784209721. The reversal of 118784209697 is 796902487811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84587323921 + 34196885776 = 290839^2 + 184924^2 .

It is a cyclic number.

It is not a de Polignac number, because 118784209697 - 2² = 118784209693 is a prime.

It is a super-3 number, since 3×118784209697³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (118784209693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59392104848 + 59392104849.

It is an arithmetic number, because the mean of its divisors is an integer number (59392104849).

Almost surely, 2^118784209697 is an apocalyptic number.

It is an amenable number.

118784209697 is a deficient number, since it is larger than the sum of its proper divisors (1).

118784209697 is an equidigital number, since it uses as much as digits as its factorization.

118784209697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 62.

The spelling of 118784209697 in words is "one hundred eighteen billion, seven hundred eighty-four million, two hundred nine thousand, six hundred ninety-seven".