6452021879 has 2 divisors, whose sum is σ = 6452021880. Its totient is φ = 6452021878.

The previous prime is 6452021831. The next prime is 6452021897. The reversal of 6452021879 is 9781202546.

It is a happy number.

Together with next prime (6452021897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6452021879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6452021899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3226010939 + 3226010940.

It is an arithmetic number, because the mean of its divisors is an integer number (3226010940).

Almost surely, 2^6452021879 is an apocalyptic number.

6452021879 is a deficient number, since it is larger than the sum of its proper divisors (1).

6452021879 is an equidigital number, since it uses as much as digits as its factorization.

6452021879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 6452021879 is about 80324.4787035683. The cubic root of 6452021879 is about 1861.6524682481.

The spelling of 6452021879 in words is "six billion, four hundred fifty-two million, twenty-one thousand, eight hundred seventy-nine".