20953350242579 has 2 divisors, whose sum is σ = 20953350242580. Its totient is φ = 20953350242578.

The previous prime is 20953350242569. The next prime is 20953350242599. The reversal of 20953350242579 is 97524205335902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20953350242579 - 2⁸ = 20953350242323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20953350242569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10476675121289 + 10476675121290.

It is an arithmetic number, because the mean of its divisors is an integer number (10476675121290).

Almost surely, 2^{20953350242579} is an apocalyptic number.

20953350242579 is a deficient number, since it is larger than the sum of its proper divisors (1).

20953350242579 is an equidigital number, since it uses as much as digits as its factorization.

20953350242579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412000, while the sum is 56.

The spelling of 20953350242579 in words is "twenty trillion, nine hundred fifty-three billion, three hundred fifty million, two hundred forty-two thousand, five hundred seventy-nine".