7006421819 has 2 divisors, whose sum is σ = 7006421820. Its totient is φ = 7006421818.

The previous prime is 7006421797. The next prime is 7006421881. The reversal of 7006421819 is 9181246007.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7006421819 - 2⁸ = 7006421563 is a prime.

It is a super-2 number, since 2×7006421819² = 98179893411518537522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7006421119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3503210909 + 3503210910.

It is an arithmetic number, because the mean of its divisors is an integer number (3503210910).

Almost surely, 2^7006421819 is an apocalyptic number.

7006421819 is a deficient number, since it is larger than the sum of its proper divisors (1).

7006421819 is an equidigital number, since it uses as much as digits as its factorization.

7006421819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 7006421819 is about 83704.3715644530. The cubic root of 7006421819 is about 1913.5159800637.

The spelling of 7006421819 in words is "seven billion, six million, four hundred twenty-one thousand, eight hundred nineteen".