6445029571213 has 2 divisors, whose sum is σ = 6445029571214. Its totient is φ = 6445029571212.

The previous prime is 6445029571177. The next prime is 6445029571283. The reversal of 6445029571213 is 3121759205446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6432092328649 + 12937242564 = 2536157^2 + 113742^2 .

It is a cyclic number.

It is not a de Polignac number, because 6445029571213 - 2¹⁷ = 6445029440141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6445029571283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222514785606 + 3222514785607.

It is an arithmetic number, because the mean of its divisors is an integer number (3222514785607).

Almost surely, 2^{6445029571213} is an apocalyptic number.

It is an amenable number.

6445029571213 is a deficient number, since it is larger than the sum of its proper divisors (1).

6445029571213 is an equidigital number, since it uses as much as digits as its factorization.

6445029571213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 6445029571213 in words is "six trillion, four hundred forty-five billion, twenty-nine million, five hundred seventy-one thousand, two hundred thirteen".