3261645195 has 8 divisors (see below), whose sum is σ = 5218632336. Its totient is φ = 1739544096.

The previous prime is 3261645151. The next prime is 3261645199. The reversal of 3261645195 is 5915461623.

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

It is not a de Polignac number, because 3261645195 - 2⁶ = 3261645131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3261645199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108721492 + ... + 108721521.

It is an arithmetic number, because the mean of its divisors is an integer number (652329042).

Almost surely, 2^3261645195 is an apocalyptic number.

3261645195 is a deficient number, since it is larger than the sum of its proper divisors (1956987141).

3261645195 is a wasteful number, since it uses less digits than its factorization.

3261645195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217443021.

The product of its digits is 194400, while the sum is 42.

The square root of 3261645195 is about 57110.8150440878. The cubic root of 3261645195 is about 1483.0150968466.

The spelling of 3261645195 in words is "three billion, two hundred sixty-one million, six hundred forty-five thousand, one hundred ninety-five".