3644479538683 has 2 divisors, whose sum is σ = 3644479538684. Its totient is φ = 3644479538682.

The previous prime is 3644479538671. The next prime is 3644479538747. The reversal of 3644479538683 is 3868359744463.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3644479538683 is a prime.

It is a super-2 number, since 2×3644479538683² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3644479538603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822239769341 + 1822239769342.

It is an arithmetic number, because the mean of its divisors is an integer number (1822239769342).

Almost surely, 2^{3644479538683} is an apocalyptic number.

3644479538683 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644479538683 is an equidigital number, since it uses as much as digits as its factorization.

3644479538683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1254113280, while the sum is 70.

The spelling of 3644479538683 in words is "three trillion, six hundred forty-four billion, four hundred seventy-nine million, five hundred thirty-eight thousand, six hundred eighty-three".