118986472909 has 2 divisors, whose sum is σ = 118986472910. Its totient is φ = 118986472908.

The previous prime is 118986472831. The next prime is 118986472931. The reversal of 118986472909 is 909274689811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118260332100 + 726140809 = 343890^2 + 26947^2 .

It is a cyclic number.

It is not a de Polignac number, because 118986472909 - 2²⁹ = 118449601997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118986472939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59493236454 + 59493236455.

It is an arithmetic number, because the mean of its divisors is an integer number (59493236455).

Almost surely, 2^118986472909 is an apocalyptic number.

It is an amenable number.

118986472909 is a deficient number, since it is larger than the sum of its proper divisors (1).

118986472909 is an equidigital number, since it uses as much as digits as its factorization.

118986472909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15676416, while the sum is 64.

The spelling of 118986472909 in words is "one hundred eighteen billion, nine hundred eighty-six million, four hundred seventy-two thousand, nine hundred nine".