195419542549 has 8 divisors (see below), whose sum is σ = 243639949248. Its totient is φ = 152274968160.

The previous prime is 195419542531. The next prime is 195419542613. The reversal of 195419542549 is 945245914591.

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

It is not a de Polignac number, because 195419542549 - 2⁵ = 195419542517 is a prime.

It is a super-2 number, since 2×195419542549² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195419542493 and 195419542502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195419542049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268957992 + ... + 1268958145.

It is an arithmetic number, because the mean of its divisors is an integer number (30454993656).

Almost surely, 2^195419542549 is an apocalyptic number.

It is an amenable number.

195419542549 is a deficient number, since it is larger than the sum of its proper divisors (48220406699).

195419542549 is a wasteful number, since it uses less digits than its factorization.

195419542549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537916155.

The product of its digits is 11664000, while the sum is 58.

The spelling of 195419542549 in words is "one hundred ninety-five billion, four hundred nineteen million, five hundred forty-two thousand, five hundred forty-nine".