3621503406624 has 48 divisors (see below), whose sum is σ = 9506547388800. Its totient is φ = 1207154983680.

The previous prime is 3621503406593. The next prime is 3621503406671. The reversal of 3621503406624 is 4266043051263.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14407977 + ... + 14657175.

It is an arithmetic number, because the mean of its divisors is an integer number (198053070600).

Almost surely, 2^{3621503406624} is an apocalyptic number.

It is an amenable number.

3621503406624 is an abundant number, since it is smaller than the sum of its proper divisors (5885043982176).

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

3621503406624 is a wasteful number, since it uses less digits than its factorization.

3621503406624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400593 (or 400585 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

Adding to 3621503406624 its reverse (4266043051263), we get a palindrome (7887546457887).

The spelling of 3621503406624 in words is "three trillion, six hundred twenty-one billion, five hundred three million, four hundred six thousand, six hundred twenty-four".