20820589410 has 16 divisors (see below), whose sum is σ = 49969414656. Its totient is φ = 5552157168.

The previous prime is 20820589399. The next prime is 20820589417. The reversal of 20820589410 is 1498502802.

It is not an unprimeable number, because it can be changed into a prime (20820589417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347009794 + ... + 347009853.

It is an arithmetic number, because the mean of its divisors is an integer number (3123088416).

Almost surely, 2^20820589410 is an apocalyptic number.

20820589410 is an abundant number, since it is smaller than the sum of its proper divisors (29148825246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20820589410 is a wasteful number, since it uses less digits than its factorization.

20820589410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694019657.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 20820589410 in words is "twenty billion, eight hundred twenty million, five hundred eighty-nine thousand, four hundred ten".