3281196385 has 4 divisors (see below), whose sum is σ = 3937435668. Its totient is φ = 2624957104.

The previous prime is 3281196377. The next prime is 3281196433. The reversal of 3281196385 is 5836911823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 722050641 + 2559145744 = 26871^2 + 50588^2 .

It is a cyclic number.

It is not a de Polignac number, because 3281196385 - 2³ = 3281196377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328119634 + ... + 328119643.

It is an arithmetic number, because the mean of its divisors is an integer number (984358917).

Almost surely, 2^3281196385 is an apocalyptic number.

It is an amenable number.

3281196385 is a deficient number, since it is larger than the sum of its proper divisors (656239283).

3281196385 is an equidigital number, since it uses as much as digits as its factorization.

3281196385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656239282.

The product of its digits is 311040, while the sum is 46.

The square root of 3281196385 is about 57281.7281949489. The cubic root of 3281196385 is about 1485.9723946007.

The spelling of 3281196385 in words is "three billion, two hundred eighty-one million, one hundred ninety-six thousand, three hundred eighty-five".