3261335672 has 32 divisors (see below), whose sum is σ = 6991795200. Its totient is φ = 1397071584.

The previous prime is 3261335657. The next prime is 3261335677. The reversal of 3261335672 is 2765331623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261335677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121229 + ... + 145667.

It is an arithmetic number, because the mean of its divisors is an integer number (218493600).

Almost surely, 2^3261335672 is an apocalyptic number.

It is an amenable number.

3261335672 is an abundant number, since it is smaller than the sum of its proper divisors (3730459528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3261335672 is a wasteful number, since it uses less digits than its factorization.

3261335672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26835 (or 26831 counting only the distinct ones).

The product of its digits is 136080, while the sum is 38.

The square root of 3261335672 is about 57108.1051340350. The cubic root of 3261335672 is about 1482.9681837322.

The spelling of 3261335672 in words is "three billion, two hundred sixty-one million, three hundred thirty-five thousand, six hundred seventy-two".