6466434277 has 2 divisors, whose sum is σ = 6466434278. Its totient is φ = 6466434276.

The previous prime is 6466434257. The next prime is 6466434329. The reversal of 6466434277 is 7724346646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6368997636 + 97436641 = 79806^2 + 9871^2 .

It is a cyclic number.

It is not a de Polignac number, because 6466434277 - 2¹⁵ = 6466401509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6466434277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6466434257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3233217138 + 3233217139.

It is an arithmetic number, because the mean of its divisors is an integer number (3233217139).

Almost surely, 2^6466434277 is an apocalyptic number.

It is an amenable number.

6466434277 is a deficient number, since it is larger than the sum of its proper divisors (1).

6466434277 is an equidigital number, since it uses as much as digits as its factorization.

6466434277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 49.

The square root of 6466434277 is about 80414.1422698769. The cubic root of 6466434277 is about 1863.0376114624.

The spelling of 6466434277 in words is "six billion, four hundred sixty-six million, four hundred thirty-four thousand, two hundred seventy-seven".