3261644612 has 6 divisors (see below), whose sum is σ = 5707878078. Its totient is φ = 1630822304.

The previous prime is 3261644597. The next prime is 3261644627. The reversal of 3261644612 is 2164461623.

It is an interprime number because it is at equal distance from previous prime (3261644597) and next prime (3261644627).

It can be written as a sum of positive squares in only one way, i.e., 1899739396 + 1361905216 = 43586^2 + 36904^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407705573 + ... + 407705580.

It is an arithmetic number, because the mean of its divisors is an integer number (951313013).

Almost surely, 2^3261644612 is an apocalyptic number.

It is an amenable number.

3261644612 is a deficient number, since it is larger than the sum of its proper divisors (2446233466).

3261644612 is a wasteful number, since it uses less digits than its factorization.

3261644612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815411157 (or 815411155 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 3261644612 is about 57110.8099399755. The cubic root of 3261644612 is about 1483.0150084865.

The spelling of 3261644612 in words is "three billion, two hundred sixty-one million, six hundred forty-four thousand, six hundred twelve".