20324509679 has 2 divisors, whose sum is σ = 20324509680. Its totient is φ = 20324509678.

The previous prime is 20324509661. The next prime is 20324509739. The reversal of 20324509679 is 97690542302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20324509679 - 2²⁴ = 20307732463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20324509649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162254839 + 10162254840.

It is an arithmetic number, because the mean of its divisors is an integer number (10162254840).

Almost surely, 2^20324509679 is an apocalyptic number.

20324509679 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324509679 is an equidigital number, since it uses as much as digits as its factorization.

20324509679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 20324509679 in words is "twenty billion, three hundred twenty-four million, five hundred nine thousand, six hundred seventy-nine".