6403285013 has 4 divisors (see below), whose sum is σ = 6403688940. Its totient is φ = 6402881088.

The previous prime is 6403284989. The next prime is 6403285033. The reversal of 6403285013 is 3105823046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3105823046 = 2 ⋅1552911523.

It can be written as a sum of positive squares in 2 ways, for example, as 3393994564 + 3009290449 = 58258^2 + 54857^2 .

It is a cyclic number.

It is not a de Polignac number, because 6403285013 - 2¹⁴ = 6403268629 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 (6403285033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177170 + ... + 210227.

It is an arithmetic number, because the mean of its divisors is an integer number (1600922235).

Almost surely, 2^6403285013 is an apocalyptic number.

It is an amenable number.

6403285013 is a deficient number, since it is larger than the sum of its proper divisors (403927).

6403285013 is a wasteful number, since it uses less digits than its factorization.

6403285013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403926.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6403285013 is about 80020.5286973287. The cubic root of 6403285013 is about 1856.9531391036.

The spelling of 6403285013 in words is "six billion, four hundred three million, two hundred eighty-five thousand, thirteen".