6466771431 has 16 divisors (see below), whose sum is σ = 9602545120. Its totient is φ = 4301216640.

The previous prime is 6466771427. The next prime is 6466771481. The reversal of 6466771431 is 1341776646.

It is not a de Polignac number, because 6466771431 - 2² = 6466771427 is a prime.

It is a super-2 number, since 2×6466771431² = 83638265481595575522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466771481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264880 + ... + 288261.

It is an arithmetic number, because the mean of its divisors is an integer number (600159070).

Almost surely, 2^6466771431 is an apocalyptic number.

6466771431 is a deficient number, since it is larger than the sum of its proper divisors (3135773689).

6466771431 is a wasteful number, since it uses less digits than its factorization.

6466771431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553583 (or 553577 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 6466771431 is about 80416.2386026603. The cubic root of 6466771431 is about 1863.0699899284.

The spelling of 6466771431 in words is "six billion, four hundred sixty-six million, seven hundred seventy-one thousand, four hundred thirty-one".