28060808000 has 56 divisors (see below), whose sum is σ = 69492610824. Its totient is φ = 11224320000.

The previous prime is 28060807993. The next prime is 28060808003. The reversal of 28060808000 is 80806082.

It can be written as a sum of positive squares in 4 ways, for example, as 67502656 + 27993305344 = 8216^2 + 167312^2 .

It is a super-2 number, since 2×28060808000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28060808003) 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, 1745801 + ... + 1761800.

It is an arithmetic number, because the mean of its divisors is an integer number (1240939479).

Almost surely, 2^28060808000 is an apocalyptic number.

28060808000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28060808000 is an abundant number, since it is smaller than the sum of its proper divisors (41431802824).

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

28060808000 is an equidigital number, since it uses as much as digits as its factorization.

28060808000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507628 (or 3507608 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The spelling of 28060808000 in words is "twenty-eight billion, sixty million, eight hundred eight thousand".