2666936029273 has 2 divisors, whose sum is σ = 2666936029274. Its totient is φ = 2666936029272.

The previous prime is 2666936029271. The next prime is 2666936029309. The reversal of 2666936029273 is 3729206396662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2563738964224 + 103197065049 = 1601168^2 + 321243^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666936029273 - 2¹ = 2666936029271 is a prime.

It is a super-2 number, since 2×2666936029273² (a number of 26 digits) contains 22 as substring.

Together with 2666936029271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2666936029271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333468014636 + 1333468014637.

It is an arithmetic number, because the mean of its divisors is an integer number (1333468014637).

Almost surely, 2^{2666936029273} is an apocalyptic number.

It is an amenable number.

2666936029273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666936029273 is an equidigital number, since it uses as much as digits as its factorization.

2666936029273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52907904, while the sum is 61.

The spelling of 2666936029273 in words is "two trillion, six hundred sixty-six billion, nine hundred thirty-six million, twenty-nine thousand, two hundred seventy-three".