195210005215 has 8 divisors (see below), whose sum is σ = 234254377728. Its totient is φ = 156166423200.

The previous prime is 195210005201. The next prime is 195210005231. The reversal of 195210005215 is 512500012591.

It is a happy number.

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

It is not a de Polignac number, because 195210005215 - 2¹⁹ = 195209480927 is a prime.

It is a super-2 number, since 2×195210005215² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 869890 + ... + 1071040.

It is an arithmetic number, because the mean of its divisors is an integer number (29281797216).

Almost surely, 2^195210005215 is an apocalyptic number.

195210005215 is a deficient number, since it is larger than the sum of its proper divisors (39044372513).

195210005215 is a wasteful number, since it uses less digits than its factorization.

195210005215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395249.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 195210005215 in words is "one hundred ninety-five billion, two hundred ten million, five thousand, two hundred fifteen".