195106353949 has 32 divisors (see below), whose sum is σ = 223182691200. Its totient is φ = 169075848960.

The previous prime is 195106353941. The next prime is 195106354021. The reversal of 195106353949 is 949353601591.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 195106353949 - 2³ = 195106353941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195106353949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195106353941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12946879 + ... + 12961939.

It is an arithmetic number, because the mean of its divisors is an integer number (6974459100).

Almost surely, 2^195106353949 is an apocalyptic number.

195106353949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

195106353949 is a deficient number, since it is larger than the sum of its proper divisors (28076337251).

195106353949 is a wasteful number, since it uses less digits than its factorization.

195106353949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15565.

The product of its (nonzero) digits is 3936600, while the sum is 55.

The spelling of 195106353949 in words is "one hundred ninety-five billion, one hundred six million, three hundred fifty-three thousand, nine hundred forty-nine".