3612673821121 has 4 divisors (see below), whose sum is σ = 3737248780500. Its totient is φ = 3488098861744.

The previous prime is 3612673821109. The next prime is 3612673821173. The reversal of 3612673821121 is 1211283762163.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1746269746225 + 1866404074896 = 1321465^2 + 1366164^2 .

It is a cyclic number.

It is not a de Polignac number, because 3612673821121 - 2¹³ = 3612673812929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3612673821101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 62287479646 + ... + 62287479703.

It is an arithmetic number, because the mean of its divisors is an integer number (934312195125).

Almost surely, 2^{3612673821121} is an apocalyptic number.

It is an amenable number.

3612673821121 is a deficient number, since it is larger than the sum of its proper divisors (124574959379).

3612673821121 is a wasteful number, since it uses less digits than its factorization.

3612673821121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124574959378.

The product of its digits is 145152, while the sum is 43.

The spelling of 3612673821121 in words is "three trillion, six hundred twelve billion, six hundred seventy-three million, eight hundred twenty-one thousand, one hundred twenty-one".