6402650543 has 4 divisors (see below), whose sum is σ = 6430856280. Its totient is φ = 6374444808.

The previous prime is 6402650521. The next prime is 6402650557. The reversal of 6402650543 is 3450562046.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6402650543 - 2¹² = 6402646447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402650843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14102528 + ... + 14102981.

It is an arithmetic number, because the mean of its divisors is an integer number (1607714070).

Almost surely, 2^6402650543 is an apocalyptic number.

6402650543 is a deficient number, since it is larger than the sum of its proper divisors (28205737).

6402650543 is a wasteful number, since it uses less digits than its factorization.

6402650543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28205736.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 6402650543 is about 80016.5641789249. The cubic root of 6402650543 is about 1856.8918049618.

The spelling of 6402650543 in words is "six billion, four hundred two million, six hundred fifty thousand, five hundred forty-three".