7866273352991 has 2 divisors, whose sum is σ = 7866273352992. Its totient is φ = 7866273352990.

The previous prime is 7866273352961. The next prime is 7866273353017. The reversal of 7866273352991 is 1992533726687.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7866273352991 - 2¹⁰ = 7866273351967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7866273352961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3933136676495 + 3933136676496.

It is an arithmetic number, because the mean of its divisors is an integer number (3933136676496).

Almost surely, 2^{7866273352991} is an apocalyptic number.

7866273352991 is a deficient number, since it is larger than the sum of its proper divisors (1).

7866273352991 is an equidigital number, since it uses as much as digits as its factorization.

7866273352991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 205752960, while the sum is 68.

The spelling of 7866273352991 in words is "seven trillion, eight hundred sixty-six billion, two hundred seventy-three million, three hundred fifty-two thousand, nine hundred ninety-one".