6402533806 has 8 divisors (see below), whose sum is σ = 9639239904. Its totient is φ = 3189453840.

The previous prime is 6402533779. The next prime is 6402533821. The reversal of 6402533806 is 6083352046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5905855 + ... + 5906938.

It is an arithmetic number, because the mean of its divisors is an integer number (1204904988).

Almost surely, 2^6402533806 is an apocalyptic number.

6402533806 is a deficient number, since it is larger than the sum of its proper divisors (3236706098).

6402533806 is a wasteful number, since it uses less digits than its factorization.

6402533806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11813066.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 6402533806 is about 80015.8347203852. The cubic root of 6402533806 is about 1856.8805195681.

The spelling of 6402533806 in words is "six billion, four hundred two million, five hundred thirty-three thousand, eight hundred six".