28050980920 has 16 divisors (see below), whose sum is σ = 63114707160. Its totient is φ = 11220392352.

The previous prime is 28050980911. The next prime is 28050980921. The reversal of 28050980920 is 2908905082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28050980921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350637222 + ... + 350637301.

Almost surely, 2^28050980920 is an apocalyptic number.

28050980920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28050980920 is an abundant number, since it is smaller than the sum of its proper divisors (35063726240).

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

28050980920 is a wasteful number, since it uses less digits than its factorization.

28050980920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701274534 (or 701274530 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 28050980920 in words is "twenty-eight billion, fifty million, nine hundred eighty thousand, nine hundred twenty".