3612546621 has 24 divisors (see below), whose sum is σ = 5513508000. Its totient is φ = 2362915152.

The previous prime is 3612546611. The next prime is 3612546647. The reversal of 3612546621 is 1266452163.

3612546621 is a `hidden beast` number, since 3 + 6 + 1 + 25 + 4 + 6 + 621 = 666.

It is not a de Polignac number, because 3612546621 - 2⁶ = 3612546557 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3612546611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127371 + ... + 153128.

It is an arithmetic number, because the mean of its divisors is an integer number (229729500).

Almost surely, 2^3612546621 is an apocalyptic number.

It is an amenable number.

3612546621 is a deficient number, since it is larger than the sum of its proper divisors (1900961379).

3612546621 is an equidigital number, since it uses as much as digits as its factorization.

3612546621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280567 (or 280555 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 3612546621 is about 60104.4642351964. The cubic root of 3612546621 is about 1534.3972807292.

Adding to 3612546621 its reverse (1266452163), we get a palindrome (4878998784).

The spelling of 3612546621 in words is "three billion, six hundred twelve million, five hundred forty-six thousand, six hundred twenty-one".