6402512213 has 4 divisors (see below), whose sum is σ = 6739486560. Its totient is φ = 6065537868.

The previous prime is 6402512203. The next prime is 6402512287. The reversal of 6402512213 is 3122152046.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6402512213 - 2²² = 6398317909 is a prime.

It is a super-2 number, since 2×6402512213² = 81984325275228314738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402512203) 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, 168487145 + ... + 168487182.

It is an arithmetic number, because the mean of its divisors is an integer number (1684871640).

Almost surely, 2^6402512213 is an apocalyptic number.

It is an amenable number.

6402512213 is a deficient number, since it is larger than the sum of its proper divisors (336974347).

6402512213 is a wasteful number, since it uses less digits than its factorization.

6402512213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336974346.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6402512213 is about 80015.6997907286. The cubic root of 6402512213 is about 1856.8784320786.

Adding to 6402512213 its reverse (3122152046), we get a palindrome (9524664259).

The spelling of 6402512213 in words is "six billion, four hundred two million, five hundred twelve thousand, two hundred thirteen".