7447443213 has 48 divisors (see below), whose sum is σ = 12058347264. Its totient is φ = 4072602240.

The previous prime is 7447443191. The next prime is 7447443229. The reversal of 7447443213 is 3123447447.

It is not a de Polignac number, because 7447443213 - 2⁶ = 7447443149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7447443313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 320556 + ... + 343002.

It is an arithmetic number, because the mean of its divisors is an integer number (251215568).

Almost surely, 2^7447443213 is an apocalyptic number.

It is an amenable number.

7447443213 is a deficient number, since it is larger than the sum of its proper divisors (4610904051).

7447443213 is a wasteful number, since it uses less digits than its factorization.

7447443213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22562 (or 22555 counting only the distinct ones).

The product of its digits is 225792, while the sum is 39.

The square root of 7447443213 is about 86298.5701677612. The cubic root of 7447443213 is about 1952.8508127199.

The spelling of 7447443213 in words is "seven billion, four hundred forty-seven million, four hundred forty-three thousand, two hundred thirteen".