1366799807 has 2 divisors, whose sum is σ = 1366799808. Its totient is φ = 1366799806.

The previous prime is 1366799801. The next prime is 1366799831. The reversal of 1366799807 is 7089976631.

It is a weak prime.

It is an emirp because it is prime and its reverse (7089976631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1366799807 - 2²⁶ = 1299690943 is a prime.

It is a super-3 number, since 3×1366799807³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366799801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683399903 + 683399904.

It is an arithmetic number, because the mean of its divisors is an integer number (683399904).

Almost surely, 2^1366799807 is an apocalyptic number.

1366799807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366799807 is an equidigital number, since it uses as much as digits as its factorization.

1366799807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 1366799807 is about 36970.2557064460. The cubic root of 1366799807 is about 1109.7750828001.

The spelling of 1366799807 in words is "one billion, three hundred sixty-six million, seven hundred ninety-nine thousand, eight hundred seven".