2644111001401 has 16 divisors (see below), whose sum is σ = 2851008565248. Its totient is φ = 2445042877200.

The previous prime is 2644111001351. The next prime is 2644111001429. The reversal of 2644111001401 is 1041001114462.

It is a cyclic number.

It is not a de Polignac number, because 2644111001401 - 2⁹ = 2644111000889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2644111001801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1217271 + ... + 2601916.

It is an arithmetic number, because the mean of its divisors is an integer number (178188035328).

Almost surely, 2^{2644111001401} is an apocalyptic number.

It is an amenable number.

2644111001401 is a deficient number, since it is larger than the sum of its proper divisors (206897563847).

2644111001401 is a wasteful number, since it uses less digits than its factorization.

2644111001401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820212.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 2644111001401 its reverse (1041001114462), we get a palindrome (3685112115863).

The spelling of 2644111001401 in words is "two trillion, six hundred forty-four billion, one hundred eleven million, one thousand, four hundred one".