3261625644044 has 6 divisors (see below), whose sum is σ = 5707844877084. Its totient is φ = 1630812822020.

The previous prime is 3261625644029. The next prime is 3261625644091. The reversal of 3261625644044 is 4404465261623.

It is a self number, because there is not a number n which added to its sum of digits gives 3261625644044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407703205502 + ... + 407703205509.

It is an arithmetic number, because the mean of its divisors is an integer number (951307479514).

Almost surely, 2^{3261625644044} is an apocalyptic number.

It is an amenable number.

3261625644044 is a deficient number, since it is larger than the sum of its proper divisors (2446219233040).

3261625644044 is a wasteful number, since it uses less digits than its factorization.

3261625644044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815406411015 (or 815406411013 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 3261625644044 in words is "three trillion, two hundred sixty-one billion, six hundred twenty-five million, six hundred forty-four thousand, forty-four".