6437845247 has 2 divisors, whose sum is σ = 6437845248. Its totient is φ = 6437845246.

The previous prime is 6437845231. The next prime is 6437845261. The reversal of 6437845247 is 7425487346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6437845247 - 2⁴ = 6437845231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6437845195 and 6437845204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6437845847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3218922623 + 3218922624.

It is an arithmetic number, because the mean of its divisors is an integer number (3218922624).

Almost surely, 2^6437845247 is an apocalyptic number.

6437845247 is a deficient number, since it is larger than the sum of its proper divisors (1).

6437845247 is an equidigital number, since it uses as much as digits as its factorization.

6437845247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 50.

The square root of 6437845247 is about 80236.1841502947. The cubic root of 6437845247 is about 1860.2879701165.

The spelling of 6437845247 in words is "six billion, four hundred thirty-seven million, eight hundred forty-five thousand, two hundred forty-seven".