2104005369361 has 81 divisors (see below), whose sum is σ = 2580165722043. Its totient is φ = 1710684087840.

The previous prime is 2104005369331. The next prime is 2104005369373. The reversal of 2104005369361 is 1639635004012.

The square root of 2104005369361 is 1450519.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 68418341761 + 2035587027600 = 261569^2 + 1426740^2 .

It is not a de Polignac number, because 2104005369361 - 2¹³ = 2104005361169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2104005369331) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 26632979320 + ... + 26632979398.

It is an arithmetic number, because the mean of its divisors is an integer number (31853897803).

Almost surely, 2^{2104005369361} is an apocalyptic number.

2104005369361 is the 1450519-th square number.

2104005369361 is the 725260-th centered octagonal number.

It is an amenable number.

2104005369361 is a deficient number, since it is larger than the sum of its proper divisors (476160352682).

2104005369361 is an frugal number, since it uses more digits than its factorization.

2104005369361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 2104005369361 in words is "two trillion, one hundred four billion, five million, three hundred sixty-nine thousand, three hundred sixty-one".