6471434356 has 6 divisors (see below), whose sum is σ = 11325010130. Its totient is φ = 3235717176.

The previous prime is 6471434341. The next prime is 6471434377. The reversal of 6471434356 is 6534341746.

It can be written as a sum of positive squares in only one way, i.e., 5570233956 + 901200400 = 74634^2 + 30020^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808929291 + ... + 808929298.

Almost surely, 2^6471434356 is an apocalyptic number.

It is an amenable number.

6471434356 is a deficient number, since it is larger than the sum of its proper divisors (4853575774).

6471434356 is a wasteful number, since it uses less digits than its factorization.

6471434356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617858593 (or 1617858591 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The square root of 6471434356 is about 80445.2258123501. The cubic root of 6471434356 is about 1863.5176769249.

The spelling of 6471434356 in words is "six billion, four hundred seventy-one million, four hundred thirty-four thousand, three hundred fifty-six".