5644363661121 has 4 divisors (see below), whose sum is σ = 7525818214832. Its totient is φ = 3762909107412.

The previous prime is 5644363661117. The next prime is 5644363661137. The reversal of 5644363661121 is 1211663634465.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5644363661121 - 2² = 5644363661117 is a prime.

It is a super-3 number, since 3×5644363661121³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5644363661191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940727276851 + ... + 940727276856.

It is an arithmetic number, because the mean of its divisors is an integer number (1881454553708).

Almost surely, 2^{5644363661121} is an apocalyptic number.

It is an amenable number.

5644363661121 is a deficient number, since it is larger than the sum of its proper divisors (1881454553711).

5644363661121 is a wasteful number, since it uses less digits than its factorization.

5644363661121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881454553710.

The product of its digits is 1866240, while the sum is 48.

The spelling of 5644363661121 in words is "five trillion, six hundred forty-four billion, three hundred sixty-three million, six hundred sixty-one thousand, one hundred twenty-one".