20828005808050 has 24 divisors (see below), whose sum is σ = 44274389489856. Its totient is φ = 7141030562640.

The previous prime is 20828005808039. The next prime is 20828005808059. The reversal of 20828005808050 is 5080850082802.

It is not an unprimeable number, because it can be changed into a prime (20828005808059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29754293662 + ... + 29754294361.

It is an arithmetic number, because the mean of its divisors is an integer number (1844766228744).

Almost surely, 2^{20828005808050} is an apocalyptic number.

20828005808050 is an abundant number, since it is smaller than the sum of its proper divisors (23446383681806).

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

20828005808050 is a wasteful number, since it uses less digits than its factorization.

20828005808050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59508588042 (or 59508588037 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 46.

The spelling of 20828005808050 in words is "twenty trillion, eight hundred twenty-eight billion, five million, eight hundred eight thousand, fifty".