6436461487 has 2 divisors, whose sum is σ = 6436461488. Its totient is φ = 6436461486.

The previous prime is 6436461403. The next prime is 6436461491. The reversal of 6436461487 is 7841646346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6436461487 - 2¹¹ = 6436459439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6436461487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6436467487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3218230743 + 3218230744.

It is an arithmetic number, because the mean of its divisors is an integer number (3218230744).

Almost surely, 2^6436461487 is an apocalyptic number.

6436461487 is a deficient number, since it is larger than the sum of its proper divisors (1).

6436461487 is an equidigital number, since it uses as much as digits as its factorization.

6436461487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 49.

The square root of 6436461487 is about 80227.5606447061. The cubic root of 6436461487 is about 1860.1546762146.

The spelling of 6436461487 in words is "six billion, four hundred thirty-six million, four hundred sixty-one thousand, four hundred eighty-seven".