3215232649 has 16 divisors (see below), whose sum is σ = 3445288000. Its totient is φ = 2991536064.

The previous prime is 3215232637. The next prime is 3215232667. The reversal of 3215232649 is 9462325123.

It is not a de Polignac number, because 3215232649 - 2¹⁵ = 3215199881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3215236649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440659 + ... + 447895.

It is an arithmetic number, because the mean of its divisors is an integer number (215330500).

Almost surely, 2^3215232649 is an apocalyptic number.

It is an amenable number.

3215232649 is a deficient number, since it is larger than the sum of its proper divisors (230055351).

3215232649 is a wasteful number, since it uses less digits than its factorization.

3215232649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7672.

The product of its digits is 77760, while the sum is 37.

The square root of 3215232649 is about 56703.0215156124. The cubic root of 3215232649 is about 1475.9471306981.

The spelling of 3215232649 in words is "three billion, two hundred fifteen million, two hundred thirty-two thousand, six hundred forty-nine".