42493600197 has 48 divisors (see below), whose sum is σ = 66913544880. Its totient is φ = 25877200896.

The previous prime is 42493600189. The next prime is 42493600199. The reversal of 42493600197 is 79100639424.

It is a happy number.

42493600197 is a `hidden beast` number, since 4 + 24 + 9 + 3 + 600 + 19 + 7 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3825917316 + 38667682881 = 61854^2 + 196641^2 .

It is not a de Polignac number, because 42493600197 - 2³ = 42493600189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42493600199) 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 47 ways as a sum of consecutive naturals, for example, 2306173 + ... + 2324525.

It is an arithmetic number, because the mean of its divisors is an integer number (1394032185).

Almost surely, 2^42493600197 is an apocalyptic number.

It is an amenable number.

42493600197 is a deficient number, since it is larger than the sum of its proper divisors (24419944683).

42493600197 is a wasteful number, since it uses less digits than its factorization.

42493600197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18822 (or 18819 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 42493600197 in words is "forty-two billion, four hundred ninety-three million, six hundred thousand, one hundred ninety-seven".