6424436687 has 2 divisors, whose sum is σ = 6424436688. Its totient is φ = 6424436686.

The previous prime is 6424436597. The next prime is 6424436701. The reversal of 6424436687 is 7866344246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6424436687 - 2²⁴ = 6407659471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6424436087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212218343 + 3212218344.

It is an arithmetic number, because the mean of its divisors is an integer number (3212218344).

Almost surely, 2^6424436687 is an apocalyptic number.

6424436687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6424436687 is an equidigital number, since it uses as much as digits as its factorization.

6424436687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 50.

The square root of 6424436687 is about 80152.5837824334. The cubic root of 6424436687 is about 1858.9955542344.

The spelling of 6424436687 in words is "six billion, four hundred twenty-four million, four hundred thirty-six thousand, six hundred eighty-seven".