20325490827 has 4 divisors (see below), whose sum is σ = 27100654440. Its totient is φ = 13550327216.

The previous prime is 20325490811. The next prime is 20325490847. The reversal of 20325490827 is 72809452302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20325490827 - 2⁴ = 20325490811 is a prime.

It is a super-2 number, since 2×20325490827² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20325490847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3387581802 + ... + 3387581807.

It is an arithmetic number, because the mean of its divisors is an integer number (6775163610).

Almost surely, 2^20325490827 is an apocalyptic number.

20325490827 is a deficient number, since it is larger than the sum of its proper divisors (6775163613).

20325490827 is an equidigital number, since it uses as much as digits as its factorization.

20325490827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775163612.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 20325490827 in words is "twenty billion, three hundred twenty-five million, four hundred ninety thousand, eight hundred twenty-seven".