6457989206807 has 4 divisors (see below), whose sum is σ = 6464808626136. Its totient is φ = 6451169787480.

The previous prime is 6457989206717. The next prime is 6457989206857. The reversal of 6457989206807 is 7086029897546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6457989206807 - 2¹⁰ = 6457989205783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6457989206857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409708244 + ... + 3409710137.

It is an arithmetic number, because the mean of its divisors is an integer number (1616202156534).

Almost surely, 2^{6457989206807} is an apocalyptic number.

6457989206807 is a deficient number, since it is larger than the sum of its proper divisors (6819419329).

6457989206807 is an equidigital number, since it uses as much as digits as its factorization.

6457989206807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819419328.

The product of its (nonzero) digits is 365783040, while the sum is 71.

The spelling of 6457989206807 in words is "six trillion, four hundred fifty-seven billion, nine hundred eighty-nine million, two hundred six thousand, eight hundred seven".