20841590481 has 32 divisors (see below), whose sum is σ = 28373925888. Its totient is φ = 13605758400.

The previous prime is 20841590477. The next prime is 20841590491. The reversal of 20841590481 is 18409514802.

It is not a de Polignac number, because 20841590481 - 2² = 20841590477 is a prime.

It is a super-2 number, since 2×20841590481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20841590401) 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 31 ways as a sum of consecutive naturals, for example, 11283100 + ... + 11284946.

It is an arithmetic number, because the mean of its divisors is an integer number (886685184).

Almost surely, 2^20841590481 is an apocalyptic number.

It is an amenable number.

20841590481 is a deficient number, since it is larger than the sum of its proper divisors (7532335407).

20841590481 is a wasteful number, since it uses less digits than its factorization.

20841590481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 20841590481 in words is "twenty billion, eight hundred forty-one million, five hundred ninety thousand, four hundred eighty-one".