118145219797 has 12 divisors (see below), whose sum is σ = 136026180576. Its totient is φ = 101751860520.

The previous prime is 118145219783. The next prime is 118145219833. The reversal of 118145219797 is 797912541811.

It is not a de Polignac number, because 118145219797 - 2¹⁹ = 118144695509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118145214797) 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 in 11 ways as a sum of consecutive naturals, for example, 14872033 + ... + 14879974.

It is an arithmetic number, because the mean of its divisors is an integer number (11335515048).

Almost surely, 2^118145219797 is an apocalyptic number.

It is an amenable number.

118145219797 is a deficient number, since it is larger than the sum of its proper divisors (17880960779).

118145219797 is a wasteful number, since it uses less digits than its factorization.

118145219797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29752056 (or 29752037 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 55.

The spelling of 118145219797 in words is "one hundred eighteen billion, one hundred forty-five million, two hundred nineteen thousand, seven hundred ninety-seven".