42349661191 has 8 divisors (see below), whose sum is σ = 44193877344. Its totient is φ = 40505688960.

The previous prime is 42349661141. The next prime is 42349661209. The reversal of 42349661191 is 19116694324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42349661191 - 2⁷ = 42349661063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42349661141) 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 7 ways as a sum of consecutive naturals, for example, 353971 + ... + 458251.

It is an arithmetic number, because the mean of its divisors is an integer number (5524234668).

Almost surely, 2^42349661191 is an apocalyptic number.

42349661191 is a deficient number, since it is larger than the sum of its proper divisors (1844216153).

42349661191 is a wasteful number, since it uses less digits than its factorization.

42349661191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121961.

The product of its digits is 279936, while the sum is 46.

The spelling of 42349661191 in words is "forty-two billion, three hundred forty-nine million, six hundred sixty-one thousand, one hundred ninety-one".