118844351993 has 2 divisors, whose sum is σ = 118844351994. Its totient is φ = 118844351992.

The previous prime is 118844351947. The next prime is 118844352019. The reversal of 118844351993 is 399153448811.

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., 114550433209 + 4293918784 = 338453^2 + 65528^2 .

It is a cyclic number.

It is not a de Polignac number, because 118844351993 - 2²⁶ = 118777243129 is a prime.

It is not a weakly prime, because it can be changed into another prime (118844351393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59422175996 + 59422175997.

It is an arithmetic number, because the mean of its divisors is an integer number (59422175997).

Almost surely, 2^118844351993 is an apocalyptic number.

It is an amenable number.

118844351993 is a deficient number, since it is larger than the sum of its proper divisors (1).

118844351993 is an equidigital number, since it uses as much as digits as its factorization.

118844351993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 56.

The spelling of 118844351993 in words is "one hundred eighteen billion, eight hundred forty-four million, three hundred fifty-one thousand, nine hundred ninety-three".