5644436611331 has 4 divisors (see below), whose sum is σ = 6450784698672. Its totient is φ = 4838088523992.

The previous prime is 5644436611277. The next prime is 5644436611369. The reversal of 5644436611331 is 1331166344465.

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

It is a cyclic number.

It is not a de Polignac number, because 5644436611331 - 2²² = 5644432417027 is a prime.

It is a super-2 number, since 2×5644436611331² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5644436610331) 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, 403174043660 + ... + 403174043673.

It is an arithmetic number, because the mean of its divisors is an integer number (1612696174668).

Almost surely, 2^{5644436611331} is an apocalyptic number.

5644436611331 is a deficient number, since it is larger than the sum of its proper divisors (806348087341).

5644436611331 is an equidigital number, since it uses as much as digits as its factorization.

5644436611331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806348087340.

The product of its digits is 1866240, while the sum is 47.

The spelling of 5644436611331 in words is "five trillion, six hundred forty-four billion, four hundred thirty-six million, six hundred eleven thousand, three hundred thirty-one".