118634430457 has 2 divisors, whose sum is σ = 118634430458. Its totient is φ = 118634430456.

The previous prime is 118634430451. The next prime is 118634430653. The reversal of 118634430457 is 754034436811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84710684601 + 33923745856 = 291051^2 + 184184^2 .

It is a cyclic number.

It is not a de Polignac number, because 118634430457 - 2²⁷ = 118500212729 is a prime.

It is not a weakly prime, because it can be changed into another prime (118634430451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59317215228 + 59317215229.

It is an arithmetic number, because the mean of its divisors is an integer number (59317215229).

Almost surely, 2^118634430457 is an apocalyptic number.

It is an amenable number.

118634430457 is a deficient number, since it is larger than the sum of its proper divisors (1).

118634430457 is an equidigital number, since it uses as much as digits as its factorization.

118634430457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 118634430457 in words is "one hundred eighteen billion, six hundred thirty-four million, four hundred thirty thousand, four hundred fifty-seven".