20982919007 has 2 divisors, whose sum is σ = 20982919008. Its totient is φ = 20982919006.

The previous prime is 20982918989. The next prime is 20982919117. The reversal of 20982919007 is 70091928902.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20982919007 - 2²⁰ = 20981870431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20982912007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10491459503 + 10491459504.

It is an arithmetic number, because the mean of its divisors is an integer number (10491459504).

Almost surely, 2^20982919007 is an apocalyptic number.

20982919007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20982919007 is an equidigital number, since it uses as much as digits as its factorization.

20982919007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 20982919007 in words is "twenty billion, nine hundred eighty-two million, nine hundred nineteen thousand, seven".