20827411801 has 4 divisors (see below), whose sum is σ = 23802756352. Its totient is φ = 17852067252.

The previous prime is 20827411771. The next prime is 20827411817. The reversal of 20827411801 is 10811472802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20827411801 - 2¹¹ = 20827409753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20827411861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487672265 + ... + 1487672278.

It is an arithmetic number, because the mean of its divisors is an integer number (5950689088).

Almost surely, 2^20827411801 is an apocalyptic number.

It is an amenable number.

20827411801 is a deficient number, since it is larger than the sum of its proper divisors (2975344551).

20827411801 is an equidigital number, since it uses as much as digits as its factorization.

20827411801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975344550.

The product of its (nonzero) digits is 7168, while the sum is 34.

The spelling of 20827411801 in words is "twenty billion, eight hundred twenty-seven million, four hundred eleven thousand, eight hundred one".