6471071642 has 16 divisors (see below), whose sum is σ = 11677122240. Its totient is φ = 2627352288.

The previous prime is 6471071627. The next prime is 6471071647. The reversal of 6471071642 is 2461701746.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 6471071596 and 6471071605.

It is not an unprimeable number, because it can be changed into a prime (6471071647) 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 7 ways as a sum of consecutive naturals, for example, 12163403 + ... + 12163934.

It is an arithmetic number, because the mean of its divisors is an integer number (729820140).

Almost surely, 2^6471071642 is an apocalyptic number.

6471071642 is a deficient number, since it is larger than the sum of its proper divisors (5206050598).

6471071642 is a wasteful number, since it uses less digits than its factorization.

6471071642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24327365.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 6471071642 is about 80442.9713648122. The cubic root of 6471071642 is about 1863.4828605023.

The spelling of 6471071642 in words is "six billion, four hundred seventy-one million, seventy-one thousand, six hundred forty-two".