7266788978287 has 2 divisors, whose sum is σ = 7266788978288. Its totient is φ = 7266788978286.

The previous prime is 7266788978233. The next prime is 7266788978311. The reversal of 7266788978287 is 7828798876627.

It is a strong prime.

It is an emirp because it is prime and its reverse (7828798876627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7266788978287 - 2³¹ = 7264641494639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7266888978287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3633394489143 + 3633394489144.

It is an arithmetic number, because the mean of its divisors is an integer number (3633394489144).

Almost surely, 2^{7266788978287} is an apocalyptic number.

7266788978287 is a deficient number, since it is larger than the sum of its proper divisors (1).

7266788978287 is an equidigital number, since it uses as much as digits as its factorization.

7266788978287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12745506816, while the sum is 85.

The spelling of 7266788978287 in words is "seven trillion, two hundred sixty-six billion, seven hundred eighty-eight million, nine hundred seventy-eight thousand, two hundred eighty-seven".