2665192918273 has 2 divisors, whose sum is σ = 2665192918274. Its totient is φ = 2665192918272.

The previous prime is 2665192918217. The next prime is 2665192918309. The reversal of 2665192918273 is 3728192915662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2032041697009 + 633151221264 = 1425497^2 + 795708^2 .

It is a cyclic number.

It is not a de Polignac number, because 2665192918273 - 2²¹ = 2665190821121 is a prime.

It is a super-2 number, since 2×2665192918273² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2665192918673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332596459136 + 1332596459137.

It is an arithmetic number, because the mean of its divisors is an integer number (1332596459137).

Almost surely, 2^{2665192918273} is an apocalyptic number.

It is an amenable number.

2665192918273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665192918273 is an equidigital number, since it uses as much as digits as its factorization.

2665192918273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 61.

The spelling of 2665192918273 in words is "two trillion, six hundred sixty-five billion, one hundred ninety-two million, nine hundred eighteen thousand, two hundred seventy-three".