20874344411 has 2 divisors, whose sum is σ = 20874344412. Its totient is φ = 20874344410.

The previous prime is 20874344369. The next prime is 20874344431. The reversal of 20874344411 is 11444347802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20874344411 - 2¹⁰ = 20874343387 is a prime.

It is not a weakly prime, because it can be changed into another prime (20874344431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10437172205 + 10437172206.

It is an arithmetic number, because the mean of its divisors is an integer number (10437172206).

Almost surely, 2^20874344411 is an apocalyptic number.

20874344411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20874344411 is an equidigital number, since it uses as much as digits as its factorization.

20874344411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 20874344411 in words is "twenty billion, eight hundred seventy-four million, three hundred forty-four thousand, four hundred eleven".