3621131343424 has 56 divisors (see below), whose sum is σ = 8214002010368. Its totient is φ = 1551574517760.

The previous prime is 3621131343409. The next prime is 3621131343457. The reversal of 3621131343424 is 4243431311263.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×3621131343424² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176472 + ... + 2937064.

It is an arithmetic number, because the mean of its divisors is an integer number (146678607328).

Almost surely, 2^{3621131343424} is an apocalyptic number.

It is an amenable number.

3621131343424 is an abundant number, since it is smaller than the sum of its proper divisors (4592870666944).

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

3621131343424 is a wasteful number, since it uses less digits than its factorization.

3621131343424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765203 (or 1765193 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

Adding to 3621131343424 its reverse (4243431311263), we get a palindrome (7864562654687).

The spelling of 3621131343424 in words is "three trillion, six hundred twenty-one billion, one hundred thirty-one million, three hundred forty-three thousand, four hundred twenty-four".