6622743213 has 6 divisors (see below), whose sum is σ = 9566184654. Its totient is φ = 4415162136.

The previous prime is 6622743199. The next prime is 6622743229. The reversal of 6622743213 is 3123472266.

6622743213 is a `hidden beast` number, since 6 + 62 + 274 + 321 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6438136644 + 184606569 = 80238^2 + 13587^2 .

It is not a de Polignac number, because 6622743213 - 2⁸ = 6622742957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622743263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367930170 + ... + 367930187.

It is an arithmetic number, because the mean of its divisors is an integer number (1594364109).

Almost surely, 2^6622743213 is an apocalyptic number.

It is an amenable number.

6622743213 is a deficient number, since it is larger than the sum of its proper divisors (2943441441).

6622743213 is a wasteful number, since it uses less digits than its factorization.

6622743213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735860363 (or 735860360 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 6622743213 is about 81380.2384673331. The cubic root of 6622743213 is about 1877.9295915857.

The spelling of 6622743213 in words is "six billion, six hundred twenty-two million, seven hundred forty-three thousand, two hundred thirteen".