2126045072369 has 2 divisors, whose sum is σ = 2126045072370. Its totient is φ = 2126045072368.

The previous prime is 2126045072329. The next prime is 2126045072377. The reversal of 2126045072369 is 9632705406212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1919020072369 + 207025000000 = 1385287^2 + 455000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126045072369 - 2²⁰ = 2126044023793 is a prime.

It is a super-2 number, since 2×2126045072369² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2126045072309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063022536184 + 1063022536185.

It is an arithmetic number, because the mean of its divisors is an integer number (1063022536185).

Almost surely, 2^{2126045072369} is an apocalyptic number.

It is an amenable number.

2126045072369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126045072369 is an equidigital number, since it uses as much as digits as its factorization.

2126045072369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 2126045072369 in words is "two trillion, one hundred twenty-six billion, forty-five million, seventy-two thousand, three hundred sixty-nine".