6442936443379 has 2 divisors, whose sum is σ = 6442936443380. Its totient is φ = 6442936443378.

The previous prime is 6442936443347. The next prime is 6442936443407. The reversal of 6442936443379 is 9733446392446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6442936443379 - 2⁵ = 6442936443347 is a prime.

It is a super-2 number, since 2×6442936443379² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6442936443379.

It is not a weakly prime, because it can be changed into another prime (6442936441379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221468221689 + 3221468221690.

It is an arithmetic number, because the mean of its divisors is an integer number (3221468221690).

Almost surely, 2^{6442936443379} is an apocalyptic number.

6442936443379 is a deficient number, since it is larger than the sum of its proper divisors (1).

6442936443379 is an equidigital number, since it uses as much as digits as its factorization.

6442936443379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282175488, while the sum is 64.

The spelling of 6442936443379 in words is "six trillion, four hundred forty-two billion, nine hundred thirty-six million, four hundred forty-three thousand, three hundred seventy-nine".