3644121485017 has 8 divisors (see below), whose sum is σ = 3924933082056. Its totient is φ = 3363380539392.

The previous prime is 3644121484877. The next prime is 3644121485021. The reversal of 3644121485017 is 7105841214463.

It can be written as a sum of positive squares in 4 ways, for example, as 1971395716096 + 1672725768921 = 1404064^2 + 1293339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3644121485017 - 2¹⁹ = 3644120960729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3644121485077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17555698 + ... + 17762059.

It is an arithmetic number, because the mean of its divisors is an integer number (490616635257).

Almost surely, 2^{3644121485017} is an apocalyptic number.

It is an amenable number.

3644121485017 is a deficient number, since it is larger than the sum of its proper divisors (280811597039).

3644121485017 is a wasteful number, since it uses less digits than its factorization.

3644121485017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35325707.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 3644121485017 in words is "three trillion, six hundred forty-four billion, one hundred twenty-one million, four hundred eighty-five thousand, seventeen".