3644121483853 has 2 divisors, whose sum is σ = 3644121483854. Its totient is φ = 3644121483852.

The previous prime is 3644121483839. The next prime is 3644121483859. The reversal of 3644121483853 is 3583841214463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1929270996324 + 1714850487529 = 1388982^2 + 1309523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3644121483853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3644121483853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3644121483859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822060741926 + 1822060741927.

It is an arithmetic number, because the mean of its divisors is an integer number (1822060741927).

Almost surely, 2^{3644121483853} is an apocalyptic number.

It is an amenable number.

3644121483853 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644121483853 is an equidigital number, since it uses as much as digits as its factorization.

3644121483853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6635520, while the sum is 52.

The spelling of 3644121483853 in words is "three trillion, six hundred forty-four billion, one hundred twenty-one million, four hundred eighty-three thousand, eight hundred fifty-three".